I know the teacher ________ Mary when he spoke of a bright girl.
#103628
A
referred to
B
had referred to
C
was referring to
D
refers to
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I should say sorry to you but I ____trouble.    
#102836
A
did not mean causing
B
did not mean to cause
C
meant causing
D
meant to cause
Experts suggest that teenagers spend at least 30 minutes exercising, five times a week. Walking and riding your bike _____ , and ______.
#103295
A
counts; so are school sports
B
count; school sports count, either
C
count; so do school sports
D
counts; so school sports do