Be careful when you deal with this chemical, as it will explode when ______ to sunlight.
#88860
A
exposed
B
to expose
C
exposing
D
being exposed
推荐题目
The living room is clean and tidy, with a dining table already_____________ for a meal to be cooked.
#88910
A
laid
B
laying
C
to lay
D
being laid
_____ to train his daughter in English，he put an ad like this in the paper，“______，an English teacher for a ten－year－old girl.”
#90840
A
Determined；Wanted
B
Determined；Wanting
C
Determine；Wanted
D
Determining；Wanting
______ is a good form of exercise for both the old and the young.
#88215
A
Walk
B
To walk
C
Walking
D
The walk
— Where is George? He said he would meet me here at 3 o’clock.— He seems with Mr. Brown in the office.
#88879
A
to talk
B
to be talking
C
to have talked
D
talking
Look over there—there’ s a very long, winding path _________ up to the house.
#95624
A
leading
B
leads
C
led
D
to lead