1.In the past few years there ——great changes in my hometown.A.have been B.were C.had been D.was2.I'm sorry you've missed the train.It ——10 minutes ago.A.left B.has left C.had D.has been leaving

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1.In the past few years there ——great changes in my hometown.A.have been B.were C.had been D.was2.I'm sorry you've missed the train.It ——10 minutes ago.A.left B.has left C.had D.has been leaving
1.In the past few years there ——great changes in my hometown.
A.have been B.were C.had been D.was
2.I'm sorry you've missed the train.It ——10 minutes ago.
A.left B.has left C.had D.has been leaving

1.In the past few years there ——great changes in my hometown.A.have been B.were C.had been D.was2.I'm sorry you've missed the train.It ——10 minutes ago.A.left B.has left C.had D.has been leaving
1.A.have been
In the past few years 是现在完成时的标志性时间
2.A.left
10 minutes ago是一般过去时的时间状语

1.B
2.B

C
in the past few years 是在过去的几年中,所以后面的句子是表示具有时间段的概念,所以选bc 但是是过去所以选had been
A
10 minutes ago 是表示一个时间点,所以前面的谓语动词用left

懂了吗祝你好好学习学习进步!

1 A in the past few years 是用现在完成时的标志
2 A ago 是用一般过去式的标志
这两题就是考察者一点的,太典型了