英语几个小语法点.Mr.chan in charge of operations since the beginning of last year.a)is b)was c)has been请分析结构和原因～thankswe are concerned the high rate of absenteeism among our emplyees.a)on b)for c)about
2019-06-21
英语几个小语法点.
Mr.chan _____in charge of operations since the beginning of last year.
a)is
b)was
c)has been
请分析结构和原因～thanks
we are concerned ______the high rate of absenteeism among our emplyees.
a)on
b)for
c)about
优质解答
1 C
现在完成时态,表示从过去一段时间开始一直在做,你看到since一般就会使用这个时态
2 C about
be concerned about 考虑,习惯搭配
1 C
现在完成时态,表示从过去一段时间开始一直在做,你看到since一般就会使用这个时态
2 C about
be concerned about 考虑,习惯搭配