—Our school is so big. We must clean it up as soon as possible.
—Don’t worry. ________.
| A．Better to be safe than sorry |
| B．It’s raining cats and dogs |
| C．Each dog has its day |
| D．Many hands make light work |
Can you tell me _______ when I called you?
| A．what were you doing | B．what are you doing |
| C．what you were doing | D．what you are doing |
Many trees _______ on the hills last year. And we will plant more this year.
| A．plant | B．planted | C．are planted | D．were planted |
My mother _______ me a computer as a birthday present next year.
| A．gives | B．will give | C．gave | D．has given |
—Do you know Xiao Li well?
—Yes. I _______ her since she was a little girl.
| A．know | B．will know | C．knew | D．have known |
Our teacher often tells us _______ our own cloth bags when shopping.
| A．take | B．taking | C．to take | D．taken |