______ over and over again, but he still couldn’t understand.
#103480
A
Having explained
B
Having been explained
C
Explaining
D
It had been explained
推荐题目
—Tony, you must have noticed the student who broke the glass.—I'm sorry.I________attentively.
#99685
A
studied
B
was studying
C
am studying
D
would study
After he had won the first prize, Mr. Su ____ to a restaurant to celebrate with us.
#104071
A
went
B
has gone
C
would go
D
had gone
It for the whole week. The city will be flooded if it soon.
#100808
A
rained; won’t stop
B
has been raining; doesn’t stop
C
has rained; won’t stop
D
rained; doesn’t stop
I am decorating my office now. I _______ comfortably in my office at this time tomorrow.
#100947
A
am sitting
B
was sitting
C
sit
D
will be sitting