1. The workers _________ very tired in hot weather. *
A. feel
B. feels
C. does feel
D. doesn’t feel
2. My mother ____________ much free time. *
A. do not have
B. hasn’t
C. doesn’t has
D. does not have
3. He often ___________ swimming on Sunday. *
A. go
B. goes
C. has gone
D. is going