As the international situation is growing more complex, what China needs should be a ___ foreign policy.

 Boss ___ us taking some days off to get refreshed after so many days of hard work.

I was not hearing to the teacher, or else I ___ his questions.

A. answered   B. had answered    C. would have answered   C. have answered

With all the food supply ___, the researchers had to put an end to the wildlife protection project and returned home.

 Whenever a patient needs an injection of Penicillin, the doctor does need to make sure whether his patient is ___ to the medicine.

–What is the theme about for the meeting this evening?.

--No idea. Perhaps we will have to discuss the plan ___ a few days later.

I am quite sure that Mr. Smith will take up his story ___ he stopped yesterday.

–Have you got any idea what led to the result that he was turned down?

--___ in the job interview, I guess.

 I want to buy a house，___ with a big garden in front of ___.

It is greatly ___ your credit that you have overcome such difficulties.