heisold,theoldmanstillinsistso

__________ he is old, the old man still insists on studying at a night school.

A．If

B．Although

C．When

D．Because

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The rescue team made every __________ to find the missing mountain climber.

A．force

B．energy

C．effort

D．possibility

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A．excuse

B．explain

C．apologize

D．tell

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I'm sorry. I _____________ you__________ to me.

A．don't know; are speaking

B．don't know ;were speaking

C．didn't know; were speaking

D．didn't know; are speaking

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--Hi, Tracy, you look tired.
--I am tired. I__________ the living-room all day.

A．painted	B．have been painting
C．had painted	D．have painted

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You should take the medicine after you read the __________.

A．lines

B．instructions

C．words

D．suggestions

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