单项选择题

I only got round to （）this a few days ago.

A. do
B. doing
C. having done
D. have done

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单项选择题

Rights exist only within a social contract, as part of an exchange of duties and entitlements. The italicized part is used to modify （）

A. the object
B. the verb
C. the subject
D. the prepositional phrase

单项选择题

Which of the following italicized phrases indicates comparison

A. The car had a sharp turn to the left.
B. To him, it was a journey of tension and conflict.
C. Synthetic fabric is inferior to cotton fabric.
D. Preparation is the key to success.

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