A tourist will easily lose his way in Shanghai_____ he has a map or a guide.
#56219
A
if
B
since
C
while
D
unless
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He is tall, _____ his son is short.
#57153
A
when
B
or
C
while
D
and
 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
I decided to write rather than________.
#57562
A
telephoning
B
telephoned
C
telephone
D
telephones