It was not until midnight _________ his father came back.
| A．when | B．while | C．that | D．as |
Learning a foreign language well is not easy, ?
| A．is it | B．isn’t it | C．does it | D．doesn’t it |
You should have watered the flower earlier, ?
| A．shouldn’t you | B．didn’t you | C．don’t you | D．haven’t you |
My sister often needs help with her study, ?
| A．need she | B．needn’t she | C．doesn’t she | D．does she |
He isn’t a diligent boy, for it is the second time he has been late, ?
| A．isn’t it | B．is he | C．has he | D．is it |
A lovely day, ?
| A．is it | B．does it | C．isn’t it | D．doesn’t it |