The traffic was _________when the car accident happened .

The traffic was ________ by an accident that occured ten minutes ago．

1. A.
   put off
2. B.
   broken down
3. C.
   stopped
4. D.
   held up

The traffic was ________ by an accident yesterday.

1. A.
   held to
2. B.
   held out
3. C.
   held on
4. D.
   held up

The bus was held up by the traffic jam, ________.

1. A.
   thus causing the delay
2. B.
   so that caused the delay
3. C.
   to cause the delay
4. D.
   caused the delay

The traffic was ______ by an accident that occurred 10 minutes ago.

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