Whenhecamein,Ihappenedmyexperi

When he came in, I happened __________ my experiment in the lab.

A．to do	B．to be doing
C．to have done	D．to be done

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The sun began to rise in the sky，______ the mountain in golden light.

A．bathed	B．bathing
C．to have bathed	D．having bathed

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Mother always complains that children _____ their shoes very quickly.

A．find out

B．wash out

C．wear out

D．set out

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He wrote a letter ___ he explained what had happened in the accident.

A．what

B．which

C．where

D．How

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—The T shirt I received is not the same as is shown online.
— ? But I promise you we’ll look into it right away.

A．Who says	B．How come
C．What for	D．Why worry

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Whenever I made mistakes, the teacher pointed them out with _____.

A．curiosity

B．satisfaction

C．envy

D．Patience

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