–Would you permit me ______here?
- Sorry, we don’t permit _____ here in the reading room.
| A．smoking; smoking | B．to smoke; to smoke |
| C．smoking; to smoke | D．to smoke; smoking |
Professor Tang didn’t give us a speech today．It washe had a traffic accident on the way to school．
| A．that | B．when | C．why | D．because |
--- Have you heard that George quit his job?
---Yeah, but I can’t why he did so．
| A．put out | B．figure out | C．carry out | D．send out |
--- Tony, you must have noticed the student who broke the glass．
--- I’m sorry．I attentively．
| A．studied | B．was studying | C．am studying | D．would study |
The policeman scolded the driver for turning without a ．
| A．symbol | B．mark | C．signal | D．chance |
I was chatting on the Internet last night when I smelt somethingin the next room．
| A．burning | B．to burn | C．be burnt | D．to be burnt |