--- 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
This book _________12 units, _________ the unit of Music.
#25997
A
contains, including
B
includes, containing
C
contains, includes
D
including, contains
— Thank God you’re safe!— I stepped back, just ____ to avoid the racing car.
#25907
A
in time
B
in case
C
in need
D
in vain
In those days, we had no phones, so we have to keep in touch _____ writing often.
#27619
A
with
B
of
C
on
D
by
Jane helped me with my work last week when I asked for leave. ______, I’ll invite her to have dinner with me.
#25788
A
In return
B
In turn
C
In time
D
In vain