[ Tenses - Pasive Voice ]
We should clean our teeth twice a day.
Our teeth ……………….
A. should be cleaned
B. shouldn’t be cleaned
C. should be clean
D. should cleaned

Random Topics:
Homophone & HomonymPhrasesSimple Present - WH QuestionsNumbersFuture - will / going to / present continuousPreposition and Preposition PhraseCompliment, Congratulation, and HopeAdverbs of DegreeGrammar - Future ActionVerb to beOther quiz:
Grammar › ViewTom didn’t go to school yesterday, and ___
A. so didn’t I
B. nor I didn’t
C. I neither did
D. I didn’t either
E. I didn’t too
Grammar › View
We don’t have to leave yet._________
A. need to
B. needn’t
Simple Past Tense › ViewSimple Past Tense – choke
A. choked
B. choken
C. chokening
D. chokes
Grammar › View
Gina: Will you help me carry some things to my car? Sam: Yes, I will.
A. True
B. False