Jack doesn’t smoke now, but he _______ for almost twenty years.
#101447
A
was smoking
B
had smoked
C
has smoked
D
smoked
推荐题目
---Why did you stop writing? --- I _____ my writing paper.
#102505
A
ran out of
B
have been used up
C
have used up of
D
have run out
— You’ve left the light on. — Oh, so I have. _____ and turn it off.
#100030
A
I go
B
I’ve gone
C
I’ll go
D
I’m going
She is a hardworking student, and all her spare time she has ________ staying in the library.
#99458
A
spent
B
is spent
C
to spend
D
to be spent
Father _____for London on business upon my arrival, so I didn’t see him.
#99289
A
has left
B
left
C
was leaving
D
had left
The young man，who by then ___ admission to university，decided to do some part-time jobs to gain more practical experience．
#100177
A
gained
B
was gaining
C
has gained
D
had gained