6. He ( ) his previous best performance in the 1000 meters.

A. improves

B. improves on

C. betters

D. proves

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7. I ( ) to interrupt a man when he’s busy working.

A. envy

B. hate

C. admire

D. improve

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8. he was astonished ( ) what he found.

A. at

B. to

C. for

D. on

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9. They made no effort to hide their amusement ( ) I produced a packet of sweets from my pocket.

A. whatever

B. wherever

C. whoever

D. whenever

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10. I had hoped to get $1000 for my old car but had to ( ) a lot less.

A. settle down

B. settle in

C. settle for

D. settle on

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