Mark the letter to indicate the correct answer.

From my room, we have a wonderful view of a(n). …………..swimming pool, which is built outside the main building.

A police spokesperson confessed that detectives were baffled  by Mr. Day’s disappearance, but were hoping to come up with an explanation.

A City University Professor reported that he discovers a vaccine which has been 80 % effective in reducing the instances of tooth decay among small children.

He has hardly never given a more impressive performance than this 

It is becoming extremely difficult to grow enough to feed the world’s rapidly increased population.

We have lived in Ha Noi …….. 4 years     

Linda doesn’t look very well. I’m worried ________ her. 

Select the best option among A, B, C or D to complete the sentences: _______, the side-effects of the drug were not discovered until many people had been seriously damaged by it.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Albert told me that they___________ fish two___________ days.

Choose the best answer:

He was absent from school _____ his illness.

Contrary to popular belief, bananas are grown on the soft stalk of a leafy plant and not on trees with wood trunks.

Choose the correct answer to fill in the blank. 

I do agree there________ simple solution to this problem.

What about ___________ the piano this afternoon?

Almost all ships move through the Suez Canal with their own power, but large ships must be assisted by a tugboat.

When Cliff was sick with the flu, his mother made him to eat chicken soup and rest in bed

The average salt content of seawater is more than three percents.

Bronze, after being heated by a strong flame, will change color, especially when exposure to hydrogen

I__________the village because I had been there before.

Hoa is excited about the (21) _____ activities she is going to do. The Y&Y is having a plan (22)______ the community. She’ll (23) _____ in its recycling program. In joining this program, she’ll collect (24) _____ paper, glass and empty cans. Then she will send them for recycling. 
She hopes that she could save natural resources and earn some money for her school Y&Y in these (25)______ . She also thinks about participating in (26)_____ planting trees and flowers or helping    the street children. 

(23).......

Choose the best answer from A, B, C, or D.

You had better …………if you want to catch the train.

Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

My parents will have celebrated 30 years of___________ by next week.