I find _____ not easy to answer this question in English.
| A．that | B．it |
| C．them | D．this |
---You look so tired!
---Yesterday I waited for my mum she came back at 12 o’clock.
| A．before | B．after | C．until | D．when |
---This dress is a little . Can you show me another one?
--- What about the orange one?
| A．cheap | B．high | C．low | D．expensive |
--- Excuse me, sir. Would you please the total cost of the trip?
--- All right, I will make it at once.
| A．look out | B．put out | C．go out | D．work out |
--- How _____ hours do you sleep a day?
--- Well, about eight hours. But how _____ sleep do we students really need?
| A．many; many | B．much; much | C．much; many | D．many; much |
--- Must I do the rest of the work today?
--- No. You _________finish it tomorrow.
| A．must | B．can | C．needn’t | D．can’t |