I was not _______her presence till she spoke to me.
| A．aware | B．aware about | C．aware of | D．aware to |
Li Gang was required to apologizethe people present at the meeting __ what he had done．
| A．for; by | B．with; about | C．to; for | D．at; with |
--- Hi, Lucy．Do you know where Linda is?
--- She in the library．I saw her there just a few minutes ago．
| A．shall be | B．must be |
| C．should have been | D．might have been |
I the office yesterday afternoon when a stranger came in with a boy．
| A．left | B．was about to leave |
| C．was to have left | D．will leave |
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 |