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My friend’s flight had taken off _________ I got to the airport to see him off.
#56042
A
while
B
after
C
before
D
until
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Please give me a call and let me know ________you will come back for dinner.
#56514
A
if
B
because
C
until
D
unless
______ time goes by, China is getting stronger and stronger.
#56015
A
Until
B
While
C
As
D
When
We never doubt______ Bill is honest.Because he never tell lies.
#56152
A
that
B
if
C
whether
D
that if
—How long has John been here? — Two years, _______ he still has no friends.
#56711
A
and
B
so
C
but
D
or
You will achieve nothing _       you work hard.
#56195
A
if
B
unless
C
when
D
That