[ Grammar ]
You ___ wear a helmet when you are riding a motorbike.
A. don’t have to
B. have to
C. has to

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Past and Present TensesDemonstrative SpeechTo infinitive - GerundSpeech TensesGrammar: Have toPassive Voice & TensesIF CLAUSEConditional Sentence Type 2 and Type 3Synonym and AntonymModals of AdviceOther quiz:
Countable and Uncountable Nouns › Viewfire
A. countable
B. uncountable
Grammar › View
Change this sentence into passive!
A: Ahmad writes a letter
P: …………………………………………..
A. A letter is wrote by Ahmad
B. A letter are wrote by Ahmad
C. A letter is written by Ahmad
D. A letter are written by Ahmad
Past Tenses › ViewEinstein … a paper on the general theory of relativity in 1916.
A. was publish
B. published
C. was publishing
Grammar › View
If he ______ the key, he’ll get into the house.
A. has
B. had
