[ Modal Verbs in First Conditional ]
If you want to have perfect white teeth, you ______ brush your teeth regularly.
A. may
B. must
C. should
D. might

Random Topics:
Be Going To vs. WillDaily Routines & TensesParallel Structure or Combining SentencesCommunicative GrammarTypes of SentencesVerb TenseVerbs & AdverbsVerb Patterns / IngIf ClausesVerb AgreementOther quiz:
Past Continuous and Past Simple Tense › ViewWhile the students …………………… English, some students …………………. their other works in the class, then the teacher got angry.
A. was learning / do
B. learned / was doing
C. were learning / were doing
D. were learning / was doing
Grammar › View
The green grapes are sweet. The purple grapes are also sweet. The green grapes are as __ as the purple grapes.
A. sweet
B. smooth
C. sweetest
D. smoothest
Vocabulary › Viewa soothing, comatose or overexcited state; dream; daze; stupor; daydream
A. lull
B. haggard
C. trance
D. foliage
Simple Present Tense › View
…. everybody join the seminar yesterday?
A. Does
B. Did
C. Do
D. Is
