成人英语三级

41. Dr. Bethune worked hard as if he ____.

A. never had felt tired

B. had never felt tired

C. never felt tired

D. was tired never

42. He finished ____the book yesterday.

A. to read   

B. read   

C. reading   

D. readed

43. Do you enjoy ____football?

A. play 

B. playing  

C. to play   

D. for playing

44. He is used to ____ in the open.

A. sleeping  

B. sleep   

C. slept

D. sleeped

45. Poor Bill couldn’t help ____.

A. coughing  

B. to cough   

C. that he coughing

D. cough

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