He began to take political science__________ only when he left school.
| A．strictly | B．truly | C．carefully | D．seriously |
You will be late ______ you leave immediately.
| A．unless | B．until | C．if | D．or |
----- _______ in the workshop. Please stop it.
----- Sorry. I________.
| A．Smoking is not allowed, don’t know | B．Not smoking, an not sure |
| C．Don’t smoke, have no idea | D．Smoking is forbidden, didn’t know |
----- What happened in that new area?
----- New houses ______ recently over there.
| A．are built | B．build |
| C．have built | D．have been built |
What _____ their child fond of?
| A．do | B．does | C．are | D．is |
I don’t think Mary and Sue _____ before, ______?
| A．have met; haven’t they | B．have met; have they |
| C．have seen; do I | D．have seen; don’t they |