--- Is it true that Mike refused an offer from Yale University yesterday? --- Yeah, but I have no idea _____ he did it; that’s one of his favorite universities.

A.whose B.which C.of which D.that

A.who B.when C.whom D.that

A.Who B. What C.That D.Which

A) another

B) more

C) the other

D) other

A. would go　B. should go　C. went　D. had gone

a. injure　　b. injured 　　c. had injure　　d. would injure

A. we are going home 　　B. if she leaves

C. we went home 　　　　D. if she had left

A) needn’t have done

B) must not have done

C) shouldn’t have done

D) can not have clone

A) regard

B) counting

C) account

D) observation