She set off at 9 a.m. and ____ the airport an hour later.

A. will reach B. would reach

C. had reached D. reached

_____ an ad does not lie, it does not mean it is altogether innocent.

A. Even if B. As if

C. If D. Now that

Below ____ an article about advertisements ____ by a student for her English project.

A. are; writing B. be; to be written

C. being; written D. is; written

Since we ____ for almost two weeks, I’ll need to buy a large backpack in advance to carry my supplies of food and water.

A. have walked B. will be walking

C. have been walking D. walked

You have to wear a helmet and a life jacket for protection, just ___ you fall into the water.

A. in case C. unless

C. though D. as

The best times to visit Shangri-la are spring and autumn ___ the temperature is at its mildest.

A. where B. on which

C. when D. in that

George Gould too visited the tomb, ____ a high fever the next day.

A. only to catch B. caught

C. being caught D. catching

We want to shock people into ____ that many smokers die all too soon from illness and diseases _____ smoking.

A. being realized; relating to B. realizing; related to

C. realizing; relating and D. being realized; related and

Many people are not fully aware of the damage that it does to their health. This is ____ we chose this picture as our logo.

A. that B. because

C. why D. for which

It is believed to _____ over by sandstorms from AD 200 to AD 400.

A. gradually cover B. be gradually being covered

C. have been gradually covered D. be gradually covered