Choose the best answer:
I ____ my pen while I ____ my homework.

Choose the best answer:
Everyone wants to reduce pollution. But the pollution (30) _____ is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. (31) _____, exhaust from automobiles causes a large percentage of air pollution. But the automobile provides transportation for millions of people. Factories discharge much of the material that pollutes the air and water but factories give (32) _____ to a large number of people. Thus, to end or greatly reduce pollution immediately, people would have to (33) _____ using many things that benefit them. Most of the people do not want to do that, of course. But pollution can be gradually reduced in several ways. Scientists and engineers can work to find ways to lessen the amount of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws (34) _____ require businesses and traffic to stop, or to cut down on certain polluting activities

There's a waste paper basket _____ her desk.

Choose the best answer:
The bus was so full that it could no longer pick ___________ passengers

Choose the best answer: 
Most young people, independent as they seem, do not feel ready to make big decisions. They may feel immense pressure trying to decide what to do when they leave school.

Choose the best answer:
___ do you usually eat lunch? At noon

Choose the best answer:
You must be depressed when seeing this scene,______?

Choose the best answer:
Some of the tourists ____ to visit Trang An Complex could not depart as scheduled

Choose the best answer:
People of different countries have quite different life styles. We American are wasteful people, (25) _______ saving. Our grandfathers began this pattern, for nature’s resources seemed so plentiful that no one ever imagined a shortage. Within a few years of the first Virginia settlement, for example, pioneers burned down their houses when they were ready to move to west. They only wanted to have the nails for (26) _______ use. No one ever gave a thought to the priceless hardwoods that went up in smoke. We the people in the United States destroy many things that other peoples save. I (27) _______ this when I was living in Britain. I received a letter from one of England’s largest banks. It was enclosed in a used envelop that had been readdressed to me. Such a practice would be (28) _______ in the United States. American banks, (29) _______ the smallest, always use expensive stationery with the names of all twenty-eight vice-presidents listed on one side of the page

Choose the best answer:
The higher the temperature is, _______ I feel

Choose the best answer: 
Keep all dangerous things out of children’s _____________

Choose the best answer:
____ as it was at such a time, his work attracted much attention

Choose the best answer:
It was customary then for children to stand __________ when the teacher came into the classroom

Choose the best answer: 
One of the best ways to understand what a job is like, is to do it. Work experience is a great way to get a feel for what a job is all about.

Choose the best answer:
I'm sure when you've stopped looking for your keys, they'll ________up somewhere

Choose the best answer:
Enthusiasm for this project has really given __________ after all the delays

Choose the best answer:
After his wife died, he began to .......

Choose the best answer:
Since the news that coffee can be very harmful to one's health was broadcast, the consumption of coffee has dropped to a much ------- level than in years past.

Choose the best answer:
Being too dependent will blindfold you to your own abilities. You will never know all the amazing things you can actually do if you do not try.

Choose the best answer:
My wife has run ___________ with another man

Choose the best answer:
Black, red, and even bright pink diamonds ......................