It is difficult for us to imagine_____ life was like for slaves in the ancient world. 
#30005
A
where
B
what
C
which
D
why
推荐题目
The reason ________ he didn’t come was _______ he was ill.
#31733
A
why; that
B
that; why
C
for that; that
D
for which; what
_______ we call the First Aid Centre, the doctors _______ by and by.
#80239
A
No sooner; would come
B
Soon after; would come
C
Shortly; are coming  
D
Immediately; will come