_______ his return from America, he got down to his research.
#92169
A
While
B
In
C
As
D
On
推荐题目
Which sentence is wrong?
#93701
A
Time and tide waits for no man.
B
Many a student are busy with their lessons.
C
As is known to all, Rocky mountains stand in North America.
D
The singer and dancer is to attend our party.
I don’t think  I’ ll  be able  to go mountain climbing  tomorrow________?
#93354
A
And how
B
How come
C
How’s it going
D
How about it
________, his suggestion was taken by all the people at the meeting. 
#93894
A
owever strange might it sound  
B
owever strange it might sound
C
owever it might sound strange 
D
trange however it might sound
--- _____ the population of China?    --- About 1.3 billion.
#93620
A
What is
B
How many are
C
How much is
D
What are