—When ________ your father start work?—At 8:00 in the morning.

A．has

B．does

C．do

D．is

They______old then. They _____old now.

A．weren't, are

B．weren't, was

C．wasn't. are

正确形式填空
1. She ______ (go)to school every day.
2. Pat ______(brush) her teeth _____(two)a day.
3. Look! The boy is ______(run) in the corridor.
4. You should _____(help) others.
5. Mary is ________(throw) the rubbish in the bin.

写出下列动词的第三人称单数形式、正在进行时形式和过去式形式
1. do _____________   _____________   _____________
2. go _____________   _____________   _____________
3. play _____________   _____________   _____________
4. get _____________   _____________   _____________
5. take _____________   _____________   _____________
6. walk _____________   _____________   _____________

He________ a taxi to the library. (　　)

A．by

B．take

C．takes