I wonder whether the teacher is one of those who _______ to the mountain village to help the children there.
| A．have sent | B．has sent | C．has been sent | D．have been sent |
Sorry I’m so late, but you cannot imagine _______ great trouble I took to find your house.
| A．what | B．how | C．which | D．why |
I’m going to buy my daughter another interesting novel, _______ she would like to read．
| A．that | B．what | C．one | D．it |
_______ playing dumb with teachers．They know very well their students.
| A．It’s no use | B．There’s no doubt | C．It’s no wonder | D．There’s no need |
— I heard the phone ringing in the office next door.
— You _______ it. They haven’t got a phone yet.
| A．couldn’t hear | B．couldn’t have heard | C．didn’t hear | D．wouldn’t have heard |
_______ I know the exam isn’t difficult, I shall not worry about it.
| A．As long as | B．As far as | C．In case | D．Even if |