---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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What a nice day! You are not busy today. ______ go to the park with Sam?
#55636
A
What about
B
Why don’t
C
Let’s
D
Why not
—How big the Green Expo Garden is!—It is. You will get los t easily you have a map or a guide.
#55376
A
unless
B
until
C
if
D
because
He was so tired that he fell asleep ___he went to bed.
#58470
A
as if
B
even though
C
ever since
D
as soon as