I used a calculator so it’s impossible I made a mistake with the bill.

=> I .......  a mistake with the bill because I used a calculator.

My brother is ________ at fixing household appliances. I’m sure he can help you.

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence. 

For the most current timetables, please contact the transit authority_____________.

Before the Industrial Revolution come to America, the vast majority of the population had lived in rural areas.

Daisy is talking to Mary about the house. Daisy:" What a lovely house you have!" Mary: "  .............   "

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

The challenges of maintaining quality control must be taken__________account before production can be increased.

The academic year in Vietnam is over _______ the end _______ May.

Hung and Quan are talking about the football match between Vietnam and Thailand.

Hung: “Vietnam beat Thailand by four goals to nil in the match.”

Quan: “  ............   . Their victory is worthy.”

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

Chemical companies in Avondale have spent considerable sums of____________on agricultural development.

Choose the best answer:
Try_______ so many mistakes.

Mike and Laura are talking about their plan for the weekend.

Mike: “I promise to go shopping with you if you help me with the housework.”

Laura: “  ....................  You are the last person to keep a promise.”

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence. 

When it comes to financing your vehicle, leasing has no__________advantage over purchasing.

 I keep sneezing because I got wet_________the way home yesterday. 

Additional information on...financial aid such as grants and scholarships can be obtained from career offices at each university.

Mathematics, a required subject in all schools, is __ into many branches.

How to protect children web fans from unsuitable material online while (1) ________ them to use the Internet has long been discussed in the U.S.
For some parents, the Internet can seem like a jungle, filled with danger for their children. But jungles contain wonders as well as hazard and with good guides, some education, and a few precautions, the wilds of the Internet can be safely (2) ________. "Kids have to be online. If we tell our kids they can't (3) ________ the Internet, we're cutting them off from their future," said an expert. 
Most kids have started to use search engines. Many of them are great for finding tons of interesting Internet sites, and they can also (4) ________ places where you might not want your kids to go. There are search engines (5) ________ just for kids. A certain software contains only sites that have been selected as safe. The most popular way to limit access would be to use what is known as a "content screener". But this can't be wholly (6)________, and the best thing parents can do is to talk to their kids and let them know what is OK or not OK to see or do on the Internet. Another way is that mum or dad is nearby when the child is surfing the Internet. 
A few other tips: - Don't put the PC in a child's room but keep it in an area where mum or dad can keep (7)________ things. That also makes the Internet more of a family activity.
- Ask your child (8) ________ he or she has been doing and about any friends they make online.
- Tell your child not to give on-line strangers (9) ________ information, especially like address and phone number.
- And tell your children never to talk to anyone they meet online over the phone, send them anything, accept anything from them or agree to meet with them (10) ________ you go along.
(1)............................

Frank is inviting William to go to the waterpark.

Frank: “What about going to the waterpark?”

William: “   ...............  ”

Mr. Conner’s remarks concerning the results of last year’s declining sales were concise and to the ..........

Whereas many people visit Internet sites where products are sold, a great number of them still hesitate  ..........  purchases online.

Did they tell you that there has in our town an excellent beach less than a mile from the campus?

We couldn't find _________could take over his job.