They dug up the road and________a box hidden under it．
| A．find |
| B．found out |
| C．discovered |
| D．invented |
Don’t turn on the radio. Your father ______ now.
| A．sleeps | B．will sleep | C．is sleeping | D．slept |
Granny often tells us _______ water in our daily life.
| A．save | B．saving | C．to save | D．saves |
Mr. Wang is a teacher. He ______ in this school for 20 years.
| A．has worked | B．worked | C．will work | D．works |
—Mum, when shall we go shopping?
—After I finish _______ the clothes.
| A．wash | B．washed | C．to wash | D．washing |
— ______ do you usually do at weekends, Susan?
— I usually help my parents do some housework.
| A．What | B．How | C．Where | D．When |