_______ the boy was walking down the street, the UFO landed.
#55622
A
While
B
After
C
Before
D
until
推荐题目
What a pity! I have only one ruler in my pencil case. ______ you ______ he can borrow it.
#55424
A
Neither; nor
B
Both; and
C
Either; or
D
Not only; but also
—Is it interesting to play computer games?—Yes, _____ you are interested in playing computer games, you’ll have trouble giving it up.
#57470
A
once
B
twice
C
as
D
as soon as
