一. 选择。
( ) 1.Betty’s mum is ________ Betty’s English.
A. worry about B. worried about C. worrying about D. worries about
( ) 2. I’m going to have something nice __________
A.eat B. to eat C. eats D. eating
( ) 3. He should be careful if he _________.
A.go climb B. go climbing C. goes climbing D. went climbing
( ) 4.I tried ______ to sleep , but failed.
A. to go B. going C.goes D. went
( ) 5. The boy felt ill aft