【单选题】【消耗次数：1】
Various_________ are offered in adult educational institutions.
①
courses
②
cases
③
calls
④
cars
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【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”Variety courses are offered in adult educational institutions.
①
正确
②
错误
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”Millions of people are enroll in adult educational institutions across China.
①
正确
②
错误
【单选题】
He __________ five telephone calls to his parents.
①
makes
②
was made
③
has made
④
was making
【单选题】
If someone calls me, ask him or her to leave a [填空] .
①
message
②
letter
③
sentence
④
notice
【单选题】
Their knowledge should ( ) the various aspects
①
updated on
②
be updated
③
update one
④
be updated on
【单选题】
Many people prefer large cars, ___ large cars are safer than small ones.
①
think
②
to think
③
having thought
④
thinking
【单选题】
Following are comments about the behavior that
people in Korea usually expect in various social ____.
①
occasions
②
cases
③
situations
④
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随机题目
【单选题】
对扬声器说法不正确的是
①
扬声器是电能转换成声能的装置
②
扬声器的阻抗与放大器的输出端阻抗必须匹配
③
扬声器摆放位置与话筒无关
④
扬声器由环形磁铁、音圈与振动膜构成