[ Grammar ]
A: Can I use my mobile phone on plane?
B: No, you ……………….. do that.
A. don’t have to
B. mustn’t

Random Topics:
Modal Verbs of ObligationModals: Possibility, Necessity, ExpectationGrammar SuffixesSecond Type ConditionalGerund & ParticiplePresent Progressive TensePhrase or ClauseMust Vs Have toSpeculation with Modal VerbsRelative PronounOther quiz:
Noun, Adjective, and Adverb Clauses › ViewWhich type of clause is underlined in the sentence below? “I remember what you said yesterday.”
A. Noun clause
B. Adjective clause
C. Adverb clause
D. None of the above
Grammar › View
No matter what happens, ____ should always be honest. It is our Chinese traditional moral value.
A. it
B. one
C. they
D. he
Adjective vs Adverb › ViewHe is a ……………….. driver.
A. careful
B. carefully
C. carefuly
Grammar › View
I didn’t have an umbrella with me, so I got wet.
A. Since I got wet, I didn’t have an umbrella with me.
B. My umbrella helped me to get wet.
C. I got wet because I didn’t have an umbrella with me.
D. I got wet, so I didn’t have an umbrella.
