问题
There __________ great changes in ourhometown over the twenty years.
A:have taken place
B:have had
C:have been
D:were
B:have had
C:have been
D:were
正确答案是：
同类题型
The purpose of new technology is to make life easier, _____ it more difficult. [ ]
If Bob’s wife won’t agree to sign the documents,_________
The fishermen were illegally arrested just several milesthe north coast
I don’t know ______ the future holds in store for me, but I’ll face the storms of life bravely.[ ]