—Why did you arrive late？
—Because my mother forgot to________．
| A．wake up me |
| B．wake me up |
| C．stay up me |
| D．stay me up |
The policeman asked the child ________ cross the street ________ the traffic lights turned green.
| A．not, when | B．not to, until |
| C．didn't, before | D．not to, after |
— I have great _______in finishing the work by myself. Could you help me?
— No problem.
| A．fun | B．success |
| C．advice | D．difficulty |
-How well she sings!
-Yes, she has a very sweet __________.
| A．voice | B．Sound |
| C．Noise | D．shout |
He found very difficultthe math problem.
| A．that；to solve | B．this；solving |
| C．it；to solve | D．it；solving |
My sister has learnt English _________.
| A．for twelve years ago | B．since she was four |
| C．twelve years ago | D．at the age of four |