With the successful launch of Tiangong-I, which was ______ breakthrough in space field, China's space dream took a step closer to ______ reality.
A. a; / B. the; a C. a; the D the; /
A few minutes earlier, and you would have seen the NBA star. But you ________.
| A．won't come | B．don't come | C．didn't come | D．haven't come |
So far nobody has claimed the money in the library.
| A．discovered | B．to be discovered | C．discovering | D．having discovered |
—The head teacher said we had only three days to finish the project.
—Don't worry. We have already ________ two thirds of it.
| A．taken over | B．given away | C．made up | D．got through |
It was April 1, 2001 William and Kate had their first baby.
| A．that | B．when | C．since | D．before |
— Can I pay the bill by check?
— Sorry, sir. But it's the management rules of our hotel that payment ______be made in cash.
| A．shall | B．need | C．will | D．can |