Everyone has periods in their lives ______ everything seems very hard.
| A．when | B．where | C．which | D．that |
I don't think it's a good idea, ___ ?
| A．is it | B．isn’t it | C．do I | D．don't I |
China has thousands of islands, the largest ___ is Taiwan.
| A．in which | B．which | C．in that | D．of which |
In China, the needle treatment dates __ ancient times.
| A．from | B．back to | C．back from | D．both A and B |
He’d like __ by air to Egypt, ___ he?
| A．to go, hadn't | B．going, wouldn't | C．to go. Wouldn't | D．going, shouldn't |
The dress ___ 19th century.
| A．dates from | B．dated from | C．dated in | D．dated on |