[单选题] Robert is said ________ abroad, but I don’t know what country he studied in.

1、[单选题]It is said that in Australia there is more land than the government knows ________.

• A、it what to do with
• B、what to do it with
• C、what to do with it
• D、to do what with it

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2、[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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3、[单选题]The disc, digitally ________ in the studio, sounded fantastic at the party that night.

• A、recorded
• B、recording
• C、to be recorded
• D、having recorded

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4、[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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5、[单选题]My advisor encouraged ________ a summer course to improve my writing skills.

• A、for me taking
• B、me taking
• C、for me to take
• D、me to take

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