--- Hey, what’s up? Water is everywhere. What can I do for you? --- Oh, great. I ______ how to operate this damn new machine. 
#72840
A
just wondered
B
was just wondering
C
had just wondered
D
have just wondered
推荐题目
I would like a job which pays more, but ______ I enjoy the work I’m doing at the moment.
#68201
A
in other words
B
on the other hand
C
for one thing
D
as a matter of fact
He asked them to come to his office one _____. 
#65025
A
at a time
B
at all time
C
at times
D
at one time
What a pity! He____________ the only chance of success.
#83347
A
threw away
B
put down
C
gave in
D
broke off