–Why, I couldn’t get you on the phone this morning.
--We _____ tennis in the yard when you called.
| A．must be playing | B．could be playing |
| C．must have played | D．must have been playing |
It is always difficult being in a foreign country, __________if you don’t speak the language.
| A．extremely | B．naturally | C．basically | D．especially |
How are you getting on with your classates?
——______. I’ve got to know them all.
| A．Far better | B．Much pleased | C．Very comfortable | D．Very good |
We must keep our room clean, for dirt and disease go______, you know.
| A．hand in hand | B．step by step | C．from time ti time | D．one zfter another |
To their great relief, the missing child returned home, ______, after an absence of two weeks.
| A．felt tired and sound | B．tiring and soundly |
| C．feeling tired but soundly | D．tired but sound |
Have your working conditions improved?
---No, ______than before, I’m afraid.
| A．no better | B．a little batter | C．not worse | D．no worse |