You …………. ask my permission. You can do what you want.
A. have to
B. don’t have to
C. mustn’t

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Article the or zero article (-)Comparison DegreeTOEFLSimple Past Irregular & NegativeIf Conditional Zero and OnePrepositionFinite and Non-Finite VerbSimple Compound and Complex SentencesPassive SentencePresent/Future/Past Simple/Present PerfectOther quiz:
Grammar › ViewWhich is correct?
A. She have done her homework.
B. She has done her homework.
Vocabulary › View
batter – The furnace purred like a great, sleepy animal; the lights glowed with steady radiance; outside, alone in the dark, the wind still battered against the house, but the angry power that had frightened Meg while she was alone in the attic was subdued by the familiar comfort of the kitchen.
A. held in check with difficulty
B. putting an end to all debate or action
C. to learn (something) so that it is fully understood and can be used
D. strike violently and repeatedly
Homonyms › ViewThe best things take a long ___.
a. thyme
b. time
Grammar › View
Give the past participle of this irregular verb
Shake:
A. shook
B. shaken
C. shake
D. shaking