---What a mess(杂乱)! Tony, you should ___________ your things to keep the room clean.
---OK, Mum! I’ll do it at once.
| A．put up | B．put on | C．put away | D．put out |
One of the suspects is ____ schoolboy.
| A．an 18-year- old | B．an 18-years-old |
| C．a 18 years old | D．a 18-year-old |
— We plan to go out for a picnic next weekend. Would you like to come along?
— ______. It’s my favorite.
| A．Enjoy yourself | B．It doesn’t matter |
| C．You’re welcome | D．That would be very nice |
Food safety is important. Rules ______ to stop people from food pollution.
| A．must make | B．must be made |
| C．can’t make | D．can’t be made |
There will be a stamp show in the museum ______ we visited last week.
| A．who | B．when | C．which | D．what |
— Linda, could you tell me ______? — He is an actor.
| A．what he does | B．what does he do |
| C．where he works | D．where does he work |