单项选择题

A．The five questions were not well designed.
B．Not all the questionnaires were returned.
C．Only a small number of students were surveyed.
D．Some of the answers to the questionnaire were not valid.
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单项选择题
A．He should be careful when using his credit cards.B．He should cook by himself.C．He should stop spending money on entertainment.D．He ought to get rid of his car to save money.
A．He should be careful when using his credit cards.
B．He should cook by himself.
C．He should stop spending money on entertainment.
D．He ought to get rid of his car to save money.
单项选择题
A．When people consider marriage an important part of their lives.B．When the costs of getting a divorce become unaffordable.C．When the current marriage law is modified.D．When husband and wife understand each other better.
A．When people consider marriage an important part of their lives.
B．When the costs of getting a divorce become unaffordable.
C．When the current marriage law is modified.
D．When husband and wife understand each other better.
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