Topics: Conditionals
Should the machine________, press this button.
A. Stops
B. Be Stop
C. To stop
D. Stop
Select your answer:

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Grammar › ViewGRAMMAR: THE PASSIVE. Choose the best option.
The contest ______________ by an unknown country
_
A. has been win
B. has been won
C. have been won
Vocabulary › View
A long journey
A. Fragment
B. Torrent
C. Trek
D. Crucial
