He has been collecting coins _______ he was seven years old.
#58296
A
because
B
while
C
when
D
since
推荐题目
 --_______ will the meeting last? --_______ they reach an agreement.
#55956
A
How long; Not until
B
When; Not until
C
How long; Until
D
When; Until
_____Peter____ Bill is good at sports. They both play basketball really well. 
#55390
A
Either; or
B
Not only; but also
C
Both; and
D
Neither; nor