单项选择题

Today, household chores have been made much easier by electrical ______.

A. facilities
B. equipment
C. appliances
D. utilities
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单项选择题
You will be getting married and having a family ______ and then you'll understand why parents want to protect their children.
A. by and by
B. in general
C. at large
D. at length
单项选择题
It was silly （）the mistake, which is rather difficult to（）

A. of him to make; admit
B. for him to make; be admitted
C. for him to make; admit
D. of him to make; be admitted
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