[ Modal Verbs ]
You________ a doctor about your headache.
A. must
B. should
C. can
D. have to

Random Topics:
Kinds of NounsIf ConditionalsGrammar, adverbs of frequency placementPrepositions of MovementVerb + Infinitive or GerundUnreal Uses of Past TensesSentence Adverbs & Third ConditionalGrammar - help/have/let/makePresent Tense (Negatives and Questions)Preposition FormOther quiz:
Present Tenses › ViewThey ……………….. in Ho Chi Minh City since 1975.
A. lived
B. has lived
C. have been living
D. live
Grammar › View
Had I known you were coming, I ____ a cake.
A. would have baked
B. will bake
C. baked
D. would bake
Grammar › ViewThe students ___by Mrs.Monty. However, this week they ______by Mr.Tanzer.
A. are usually taught / are being taught
B. usually teach / are teaching
C. have usually been taught / have been teaching
D. were usually teaching / are teaching
Past Tense vs Present Perfect Tense › View
I _________ (find) a cockroach in my school bag two days ago.
A. have find
B. finded
C. have found
D. found
