_______ his return from America, he got down to his research.
#92169
A
While
B
In
C
As
D
On
推荐题目
 There is no need _______ and it’s no use __________ there too early.
#92017
A
to rush; arriving
B
to worry; to arrive
C
worrying; arriving
D
to rush; to arrive
New Zealand wine is _________ and is sold all over the world.
#94897
A
of high quality
B
high quality
C
good quality
D
of poor quality