--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
. Tom as well as his classmates __________ a song when the teacher came into the classroom.
#103734
A
are singing
B
were singing
C
is singing
D
was singing
Where were you at lunch time? I a seat for you in the dining hall.
#104548
A
saved.
B
was saving .
C
have saved.
D
had saved.
—Your colleague’s spoken English is quite good，Amy.—No wonder，as she________in the USA for two years.
#99402
A
worked
B
has been working
C
had worked
D
has worked
By the time I swa the angry expression on his face, I ______ exactly what I was having to face. But not for a moment _______ I should quit.
#104463
A
had known; I thought
B
have known; had I thought
C
would know; I would think
D
knew; did I think
—What’s the noise outside?—Some children_____ hide-and-seek in the yard.
#101214
A
were playing
B
are playing
C
have played
D
played