If Tom ______ an alarm, the thieves wouldn't have broken into his house.

A. was installed

B. to install

C. had installed

D. have installed

Humans have done great advances in technology at the expense of the environment.

A. at the expens

B. Humans

C. have done

D. advances

Mark the letter A, B, C or D on your answer sheet to indicate the answer to the following
question.
This product has not been tried _____ humans yet.
A. out      B. on for       C. on      D. out on

#opp

In sport commentaries , justice and impartiality to both sides are vital , but spontaneity and enthusiasm are valued by those watching or listening

A.unfairness

B.equality

C.probity

D.honesty

As darkness fell, there was nothing for it but to _____ for the nearest village.

A. stand B. make C. call D. go

Let's have a break - we' ve done enough for the time _____
A.being
B.now
C.instant
D.immediate

Going by plane costs _____ taking the train to Ho Chi Minh from Hue.

A. Twice more thanB. Twice as much asC. As much twice asD. As much as twice

_____ that he only started learning it two years ago, his English is excellent.

A. WonderingB. Accounting C. Thinking D. Considering
 

A. Economy
B. Communicate
C. Liberation
D. Particular

If you have stomach problems it is best to avoid _____food.
A.rich 
B.affluent
C.wealthy 
D .lavish