—Whendidyoubecomeavolunteer？—I

—When did you become a volunteer？
—I________in this group since 2008．

A．joined

B．took part

C．have joined

D．have been

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A．What , by

B．How , by

C．What , with

D．How , with

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A．a; an

B．an; a

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— ________. He seemed interested in my experience, but he didn’t ask for my recommendation letter.

A．Perfect

B．I’m not sure

C．That’s right

D．Couldn’t be better

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Our headmaster isn’t in his office. I can’t find him anywhere. Did you notice him ______ the office?

A．to enter

B．enter

C．to leave

D．leave

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You had better ________ some time every day for sports so that you can keep yourself energetic.

A．spend

B．take

C．spare

D．give

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