[ Grammar ]
It is very simple to ________ this machine.
A. to use
B. used
C. use

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Such...that, so ......thatModals and Active and Passive VoiceGrammar and Sentence CorrectionConnectivesPresent Perfect Tense and Simple Past TensePresent Simple PassivePast Tense and NeutralAdjective ending with ED & INGNouns, Articles, DeterminersPreposition (at,in,on)Other quiz:
Verb Tenses › ViewWhat were you doing when the accident happened?
A. I repaired the car
B. I was repairing the car
C. I repair the car
D. I am repairing the car
Grammar › View
Lisa didn’t take a trip to Penghu, but her classmates ________.
A. did
B. take
C. took
D. didn’t take