[单选题] If you can’t get in the front door, _________ to the back door.

1、[单选题]According to a recent U. S. survey, children spend up to 25 hours a week ________ TV.

• A、to watch
• B、to watching
• C、watching
• D、watch

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2、[单选题]If you are planning to spend your money having fun this week, better ________ it—you’ve got some big bills ing.

• A、forget
• B、forgot
• C、forgetting
• D、to forget

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3、[单选题]Having been attacked by terrorists, ________ .

• A、doctors came to their rescue
• B、the tall building collapsed
• C、an emergency measure was taken
• D、warnings were given to tourists

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4、[单选题]The flu is believed ________ by viruses that like to reproduce in the cells inside the human nose and throat.

• A、cause
• B、being caused
• C、to be caused
• D、to have caused

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5、[单选题]________ with the size of the whole earth, the biggest ocean doesn’t seem big at all.

• A、pare
• B、When paring
• C、paring
• D、When pared

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