His problem is ______to know how to get along with his new classmates.
A. got
B. get
C. getting
D. having got
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Only__Chinese doesn't mean _____ the language.
A. learning about; learn
B. learning about; learning
C. to learn about; to learn
D. learn about; learn
_____ a hot bath every day is good for our health.
A. Take
B. Taken
C. Took
D. Taking
It is no use____ a child to do what he is unwilling to do.
A. asked
B. to ask
C. asking
D. ask
There is no doubt that_____ the environment is imperative.
A. protecting
B. be protected
C. protect
D. to protect
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