A.Tom’s bike broke down on the way | B.it happened that Tom’s bike hit a car |
C.a car knocked Tom off his bike | D.Tom knocked into a tree |
A.honor; visit | B.honored; pay a visit |
C.honored; paying a visit | D.honoring; visiting |
A.left; lied; disappeared | B.leaving; lying; disappeared |
C.leaving; lie; disappearing | D.left; lay; disappear |
A.the doorbell rang | B.the doorbell rings |
C.we heard the doorbell ring | D.we heard the doorbell rings |
A.who has made | B.having made | C.made | D.making |
A.to introduce | B.introduced |
C.introducing | D.to be introduced |
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