It is very simple to ________ this machine. ...

[ Grammar ]

It is very simple to ________ this machine.

A. to use

B. used

C. use

Select your answer:

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We _________ a hole to plant flower right now.

A. dig

B. dug

C. are digging

D. water

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a ghost or ghostly figure, an unexplained or unusual appearance

A. indiscriminate

B. disdain

C. apparition

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