[ Grammar ]
He _________ swim very well.
A. can
B. can’t
C. could
D. couldn’t

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Grammar › ViewBoth nikel and iron are whitish metals —-.
A. that are attracted by magnets
B. that magnets are attracted by them
C. are attracted by magnets
D. magnets that attract them
Grammar › View
The poster says that the student council _________ for volunteers this week to help in a summer camp.
A. are looking
B. is looking
C. look
D. have looked
Vocabulary & Grammar › View. What is a “chamber”?
A. A chamber is a type of musical instrument.
B. A chamber is a type of food storage container.
C. A chamber is a closed space or room.
D. A chamber is a method of communication.
Grammar › View
If you _______hard, you would not have failed in the exam
A. have work
B. have worked
C. had work
D. had worked