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

1、[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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2、[单选题]Having been ill in bed for nearly a month, he had a hard time ________ the exam.

• A、pass
• B、to pass
• C、passed
• D、passing

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3、[单选题]I don’t know whether you happen ________ , but I’m going to study in the U. S.
this September.

• A、to be heard
• B、to be hearing
• C、to hear
• D、to have heard

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4、[单选题]Helen had to shout ________ above the sound of the music.

• A、making herself hear
• B、to make herself hear
• C、making herself heard
• D、to make herself heard

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5、[单选题]The research is so designed that once ________ nothing can be done to change it.

• A、begins
• B、having begun
• C、beginning
• D、begun

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