He was last seen _________in his office at about 7:15 p.m..
#60589
A
work
B
working
C
to work
D
worked
推荐题目
She asked us _____ the dialogue and try to recite it.
#52313
A
read
B
reads
C
to read
D
reading
On our way home, our bikes______, so we had to walk home.
#55249
A
is broken
B
was broke
C
broke down
D
breaks down
The driver drove _______ hit at a big tree and the car came to a stop.
#55902
A
too carelessly to
B
carelessly enough to  
C
so carelessly that he
D
so careless that he
Be careful not to ______ your bike with so many heavy bags. 
#54224
A
turn off
B
set off
C
take off
D
fall off