–Excuse me, sir, but I don’t think you can smoke here.
–Really sorry. I ______ this is a non-smoking area.
| A．don’t know | B．didn’t know | C．have no idea | D．haven’t known |
--__do you go to the English club?
--Once a week.
| A．How old | B．How often | C．How much | D．How many |
Lucy is__good girl. She often helps others.
| A．a | B．an | C．the | D．/ |
— 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 |