—Where is Tom?
—Well, he______ you_______ here．Otherwise he would come down right now．
| A．didn’t know；were | B．hasn’t known；are |
| C．doesn’t know；are | D．hadn’t known；were |
The Chinese exploration ship will join in the search for______ seemed like parts of the missing plane.
| A．what | B．which | C．that | D．it |
— It is hot today, isn’t it? — Yes. _______ yesterday.
| A．So was it | B．So it was | C．So it is | D．So is it |
______ I admit that there are quite a few problems, I don't agree that they cannot be solved.
| A．Supposing | B．Since | C．While | D．As |
My parents expected too much of me. When they heard that I hadn’t passed the college entrance examination, they almost ______.
| A．broke up | B．broke down | C．broke off | D．broke out |
Years of fighting have ______ the area ______.
| A．remained; in ruins | B．left; in ruins | C．remained; in ruin | D．left; in ruin |