Only _______ to borrow magazines from the reading-room.
| A．are the teachers allowed |
| B．the teachers are allowed |
| C．are allowed the teachers |
| D．did the teachers be allowed |
___ the room, the nurse found the tape-recorder ___.
| A．Entering; stealing | B．Entering; gone |
| C．To have entered; being stolen | D．Having entered; to be stolen |
____ I understood very little French, I couldn’t follow their conversation.
| A．Although | B．Unless | C．Since | D．Before |
____ to light for a long time, the potatoes turned green.
| A．Introduced to | B．Exposed to | C．Linked to | D．Connected to |
– May I go to the movies tonight, mum?
-- You can when you ____ your homework.
| A．will finish | B．are finishing | C．will have finished | D．have finished |
I have had my bike ___, and I'm going to have som
ebody ___ my radio tomorrow.
| A．repair; to repair | B．repairing; to be repaired |
| C．repaired; repair | D．to repair; repairing |