You could hardly imagine ______________ amazing the Great Wall was _______________ you saw it with your own eyes.
| A．how, unless | B．what, unless |
| C．how, if | D．what, until |
---Can you tell me __________?
---Yes. She came here on foot.
| A．where Kate came from | B．how Kate came here |
| C．when Kate comes here | D．why Kate didn’t come here |
The news made me ________.
| A．happily | B．crying | C．disappointed | D．exciting |
----How are you going, buddy?
----________. A little busy, though.
| A．Can’t be worse | B．By train | C．Not too bad | D．on my own |
Scientists from different countries are trying to_______ a good way to solve the energy problem.
| A．keep up with | B．come up with | C．catch up with | D．meet up with |
— Have you finished writing your book? — Yes. It _______ and _______ soon.
| A．is printing; is coming out | B．is being printed; will come out |
| C．is going to print, will be come out | D．is printed; has come out |