______ the police thought he was the most likely one, since they had no exact proof about it, t hey could not arrest him．
| A．If only | B．As long as | C．Although | D．As soon as |
— What do you suppose ______ her look so upset?
—______ by her boyfriend again.
| A．making ; Misunderstood | B．had made ; Being misunderstood |
| C．made ; Having been misunderstood | D．has made ; Misunderstood |
This kind of glasses made by experienced workers _______ comfortably.
| A．is worn | B．wears | C．has worn | D．has been worn |
Your window wants ________；you’d better have it ______ this week.
| A．cleaning；do | B．to be cleaned；do |
| C．cleaning；done | D．being cleaned；done |
Between the two parts of the concert is an interval(休息时间), ______ the audience can buy ice-cream.
| A．when | B． where | C． that | D．which |
It is never clear _____ the man hadn’t reported the accident sooner.
| A．that | B．how | C．when | D．why |