16. － Mom, what did the doctor say?
－ He advised me to live _______ the air is fresher.
| A．in which | B．where | C．the place where | D．in where |
I suppose he’s serious, ___________?
| A．do I | B．don’t I | C．is he | D．isn’t he |
I don’t think he will come to our party, _____?
| A．will he | B．won’t he | C．does he | D．do I |
The man in blue must be your brother, _____?
| A．mustn’t he | B．needn’t he | C．isn’t he | D．is he |
You hardly know each other, _________?
| A．do you | B．don’t you | C．have you | D．didn’t you |
She never tells a lie, ________?
| A．does she | B．doesn’t she | C．is it | D．isn’t it |