Why ______ you always ______ us instead of agreeing with us?
| A．do; oppose to | B．are; opposed to |
| C．do; disagree | D．are; opposed |
“Shall Mary come and play computer games?” “No, _______ she has finished her homework.”
| A．when | B．since |
| C．unless | D．as soon as |
_______ the sun rising slowly in the east, the scene is a perfect dream.
| A．Seeing | B．To be seeing |
| C．When you see | D．Having seen |
______ for something, a receipt is given to you.
| A．Paying | B．Having paid |
| C．When you have paid | D．To be paying |
_______ a pair of compasses, it is easy to describe a circle.
| A．Having | B．To have had |
| C．If you have | D．if having |
“May I go and play with Dick this afternoon, Mum?” “No, you can’t go out _______ your work is being done.”
| A．before | B．until |
| C．as | D．the moment |