No one in the department but Tom and I ______ that the director is going to resign.
| A．knows | B．know | C．have known | D．am to know |
________，he talks a lot about his favorite singers after class.
| A．A quiet student as he may be |
| B．Quiet student as he may be |
| C．Be a quiet student as he may |
| D．Quiet as he may be a student |
________ and we’ll get everything ready for the taking off.
| A．Have one more hour |
| B．One more hour |
| C．Give one more hour |
| D．If we have one more hour |
Not until we have had a chance to discuss it thoroughly ________ perfectly.
| A．the problem has been settled |
| B．has the problem been settled |
| C．will the problem be settled |
| D．the problem was settled |
—Have you been to the Great Wall?
—Perhaps not in my memory.________，it might have been during my early childhood.
| A．If any | B．If so |
| C．If ever | D．If not |
More than a dozen students in that school ________ abroad for further study every year.
| A．sent | B．are sent |
| C．have been sent | D．have sent |