______ Kathy was watching TV, her mother asked her to go shopping.
#56706
A
Before
B
Until
C
While
D
After
推荐题目
______ would you like to live in? 
#55518
A
where
B
which city
C
which
D
When
You will fall behind others_______ you work hard.
#56590
A
if
B
unless
C
though
D
since
Grace Brown __________ play tennis every day.
#58071
A
isn‘t
B
don’t
C
aren’t
D
doesn’t.