---How long have you known the doctor ? ---_________he helped me three years ago.
#56019
A
When
B
Before
C
Because
D
Since
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---I don’t have a tennis racket, _____my brother has one. --- Let’s go to find him.
#56149
A
and
B
or
C
but
D
so
______ the work is difficult, all the workers are keeping on working .
#58370
A
But
B
Although
C
And
D
So
_______ he is very young, _______ he knows a lot about how to be healthy.
#56686
A
Though; but
B
Although; but
C
／;but
D
Although;／
– _________ do you go to your school library?– Three times a month
#58110
A
How long
B
How often
C
How much
D
When