Great changes_____ in the small city in the last 20 years.
#102827
A
have taken place
B
took place
C
had taken place
D
are happening
推荐题目
I will stay at home and read some books if it ________ tomorrow.
#101843
A
rain
B
will rain
C
rains
D
is going to rain
—Could I use your dictionary?—Sorry, it __________.
#102450
A
is using
B
was using
C
was used
D
is being used
Oetzi, the 5,000 years old “Iceman”, ______on the alpine border between Italy and Austria in 1991.
#102964
A
was discovering
B
was discovered
C
had been discovered
D
discovered
---- Tom, did Mr. Li join you in your discussion? ---- No, he _____, but he happened to have fallen ill.
#104713
A
would like to
B
will
C
was to have
D
was going to join
It long before we the result of the experiment．
#102004
A
will not be；will know
B
is；will know
C
will not be；know
D
is; know