_______ his return from America, he got down to his research.
#92169
A
While
B
In
C
As
D
On
推荐题目
Only when I left my parents for America ____ how much I loved them.
#93363
A
I realized
B
I had realized
C
had I realized
D
did I realize
Nowadays we take___ exercise a day as we need because of widely used automobiles.
#92002
A
less than half
B
less than as half as
C
less than half as much
D
half less than
It is said_______ was all _______ he said.
#93775
A
that that; that
B
what what ; what
C
that which; what
D
that that; what