He feels it his duty ___

He feels it his duty ____ others.

#98689

to help

to be coming

help

helped

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She was the first　　　 about it.

#98006

to learn

learning

to have learned

This problem is said _______ three times, but he still can’t understand it.

#90815

to have been explaining

to have explained

having been explained

to have been explained

The way Della thought of_______enough money was to sell her beautiful hair.

#97415

got

to be got

to get

get

When a question ________at the meeting, no one could answer it.

#96979

rose

raised

came

arose

Remember _______ off the light when _______ to bed.

#98423

turning, going

to turn, to go

turning, to go

to turn, going

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