Milk will turn sour soon on hot days ______ it is stored in the refrigerator．
#30135
A
since
B
until
C
because
D
unless
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Having checked the doors were closed, and ________ all the lights were off, the boy opened the door to his bedroom.
#29971
A
why
B
that
C
when
D
where
_I like to have my photos taken_______there are mountains and rivers.
#80047
A
there
B
in which
C
when
D
where
.---______?------- That would be great! Please drop me off at the library.
#34738
A
could you bring me the bill
B
would you like me to give you a lift
C
could you tell me the postcode for Patia
D
Would you like to have my e-mail address.
7．Peter was so excited he received an invitation from his friend to visit Chongqing.
#80665
A
where
B
that
C
why
D
when
_______ we were studying abroad, we learned much about foreign culture and customs.
#31663
A
Since
B
While
C
After
D
During