Susan was just _____ at those pigeons at the time, so I don’t think she saw me.
#96784
A
spotting
B
watching
C
glaring
D
staring
推荐题目
We had an anxious couple of weeks _____ for the results of the experiment.
#97903
A
wait
B
to be waiting
C
waited
D
waiting
Everyone here will thank the firefighters for the things they have done to prevent fires _______ the environment safer.
#98466
A
make
B
to making
C
to make
D
from making
It was so cold that he had the fire ___________ all night long.
#90365
A
to burn
B
burn
C
burning
D
burned
.----Who are those people gathering in front of the building? -----A group __________ itself the youth volunteers.
#96684
A
calling
B
calls
C
called
D
to be called