____ you may be right, I can’t altogether agree.
| A．While | B．As | C．If | D．Since |
Thisis the best book __________ I've ever bought.
| A．that | B．who | C．with which | D．which |
The girl is familiar to me. Maybe she is the girl __________ Imet in the street yesterday.
| A．which | B．whom | C．as | D．what |
I have bought the same dress __________ she is wearing.
| A．as | B．that | C．which | D．than |
He often helps the students __________ he thinks are notquick at their studies.
| A．whom | B．who | C．when | D．because |
It's the third time __________ late this month.
| A．that you arrived |
| B．when you arrived |
| C．that you've arrived |
| D．when you've arrived |