John was walking to school, he saw a cat in a tree.
#56784
A
Because
B
Since
C
While
D
If
推荐题目
_____ Jack ____ Mike can go to the meeting because one of them must stay in the classroom.
#55508
A
Not only but also
B
Neither nor
C
Both and
D
Either or
______ would you like to live in? 
#55518
A
where
B
which city
C
which
D
When
She has __  __ haircut __  __ I do.
#57569
A
the same…as
B
the same…with
C
same…as
D
same…with