People around the country were excited __________ the astronauts came back to the earth safely.
#30717
A
unless
B
but
C
until
D
because
推荐题目
This work, when we find it and do it----_________only as a hobby at first---is a key to our true happiness.
#34258
A
even if
B
only if
C
as if
D
if however
—May I go now?—__________ you've finished your work, you may go.
#29947
A
After
B
Although
C
Now that
D
As soon as
—Are you ready for Spain?—Yes，I want the girls to experience that ________ they are young.
#30679
A
while
B
until
C
if
D
before
. It is uncertain __ side effect the medicine will bring about, although about two thousand patients have taken it.
#34730
A
that
B
what
C
how
D
whether