You________wear sports shoes when you climb a mountain．
| A．can’t |
| B．shouldn’t |
| C．mustn’t |
| D．have to |
People in Lanzhou are glad that a modem subwayin several years.
| A．will complete | B．will be completed |
| C．has completed | D．is completed |
Have you asked the teachertomorrow morning?
| A．if we needed an umbrella |
| B．when and where we shall meet |
| C．how shall we get there |
| D．what should we take |
—How long is the bridge?
—It's.
| A．300-meter-long | B．300-meters long |
| C．300 meters long | D．300 meter long |
Sheto an English program while her parentsTV.
| A．was listening; is watching |
| B．listened; were watching |
| C．was listening; watched |
| D．was listening; were watching |
Therea girl singing next door. Can't you hear her beautiful voice?
| A．must be | B．must have |
| C．can't be | D．can't have |