--How did she get infected? --She ________the virus without any protection.
#100265
A
exposed to
B
had been exposed to
C
had exposed to
D
was exposed to
推荐题目
Over the past l00 years，sea level steadily as a result of global warming．
#103377
A
had increased
B
has been increasing
C
increased
D
is increasing
The little boy is dirty from head to foot because he ______ in the mud all morning.
#103627
A
has played
B
has been playing
C
is playing
D
was playing
—We are informed that the Weifang International Kite Festival starts at 7:00. —Oh, I didn’t expect it was so early! I ____ to go out for dinner with my friends first.
#104210
A
was planning
B
am planning
C
have been planning
D
have planned
—Mary, do you still remember the first time we met?—of course, You Helen’s birthday party with your friends in a restaurant.
#100816
A
attended
B
had attended
C
were attending
D
have attended
—What do you think of our country?—Very beautiful.You know it is the first time that I here.
#101729
A
will be
B
was
C
have been
D
had been