The science Festival is an occasion _____ model planes and model rockets are flown over the school grounds. 
#76243
A
that
B
when
C
where
D
which
推荐题目
This is the very book _____ I need now. 
#77896
A
what
B
which
C
that
D
all
I didn’t like the way_______ he looked at me.
#78135
A
in which
B
that
C
不填
D
all the above