I’m afraid Mr.Harding ____ see you now . he’s busy.
| A． can’t | B． mustn’t | C． shouldn’t | D．needn’t |
-----An ant has two stomachs --- one for itself, one for others.
-----Really? Quite interesting. I ____ anything about it.
| A．don’t know | B．have known | C．haven’t known | D．didn’t know |
We must work hard and make _______ continuous progress so that we can make _______great contribution to our country in the future.
| A．/ ; a | B．the ; a | C．a ; a | D．/ : / |
Not knowing what version of iPad to choose, _____．
| A．some advice was given to Barbara | B．Barbara had to consult her IT teacher |
| C．so Barbara had to consult her IT teacher | D．Barbara's IT teacher gave her some advice |
It was commanded that the coal mine survivors ____ to the nearest hospital for treatment．
| A．must send | B．be sent | C．would be sent | D．should send |
—What's your plan for this July?
—I will take a bullet train to Fuzhou for my holiday _____ school ends．
| A．while | B．until | C．unless | D．immediately |