--- Hello! Is Mr. John in the office?--- Yes. But I’m sorry. He is busy _________ and can’t speak to you. 
#26347
A
at once
B
at present
C
at the end
D
at first
推荐题目
. Understanding the article is _______ my ability
#27462
A
away from
B
over
C
beyond
D
on
John is to attend the meeting _______ the manager, who has come down with a bad cold.
#27439
A
in case of
B
in favour of
C
in honour of
D
in place of
The kid was making noise          just to attract attention. Let him be!
#26795
A
in addition
B
in vain
C
on average
D
on purpose
You are wanted ___ phone.
#28869
A
by
B
on
C
at
D
in
The company was named Gates Hall ______ a man named James Gates.
#26580
A
in need of
B
in search of
C
with the help of
D
in memory of