San _________ his teeth every morning before breakfast.
A. cleaned
B. is cleaning
C. cleans
D. clean

Random Topics:
Modals and PhrasesGrammar - either...or, neither...norModal Auxiliaries and To Be VerbsComparatives - SuperlativesPresent and Past TenseCompliment, Congratulation, and HopeGrammar - First ConditionalAspect or tenses of VerbsModal Verbs of ObligationPast form of ModalsOther quiz:
Tenses › ViewI’ll wait for you here.
A. simple present
B. simple past
C. future
D. past continuous
Modals of Necessity and Suggestion › View
A: I’m planning to go to Bogota next year. When do you think I __________ go?
B: You __________ go anytime. The weather is nice almost all year.
A. ought to / can
B. can / should
C. need to / can
D. should / ought to
Simple Past Tense › ViewDad _________ me a bike for my birthday last year.
A. buy
B. buys
C. bought
D. buying
Relative Clause › View
I first learn English from a book. I’ve just reread it.
A. I first learn English from a book who I’ve just reread it.
B. I’ve just reread the book which I first learned English from.
C. I first learn English from a book whom I’ve just reread it.
D. I first learn English from a book whose I’ve just reread it.