Darwin counted 225 flowering plants, ________ he collected and brought home 193.
| A．that | B．in that | C．of which | D．all of which |
I am late, ____?
| A．aren't I | B．aren’t you | C．are you | D．am i |
We used to have a discussion, ___?
| A．did you | B．didn’t we | C．used we | D．didn't used we |
I don't think you have eaten so many crisps ,____?
| A．do I | B．haven't you | C．have you | D．don't you |
A Kangaroo scarecely knew anything about it, __?
| A．didn't we | B．doesn't he | C．did he | D．does he |
We have to camp near, ___?
| A．don't we | B．haven't we | C．will we | D．needn’t we |