_______ his return from America, he got down to his research.
#92169
A
While
B
In
C
As
D
On
推荐题目
It was Alice and her friends who helped the homeless old woman,______?
#93973
A
wasn’t it?
B
wasn’t she
C
didn’t they?
D
weren’t they?
—Haven’t seen Lucy recently. What’s happened?—Oh, it’s more than two months ______ she worked here.
#92295
A
before
B
after
C
since
D
when
It’s the first time that he has been to Australia ,______?
#94116
A
isn’t he
B
has’t he
C
isn’t it
D
hasn’t it
She explains English grammar ___clearly _____even I can understand it.
#93604
A
even…if…
B
so…that…
C
as…if…
D
but…and…