We use them when we want to sound polite and formal.
A. ability
B. obligation
C. permission
D. possibility

Random Topics:
Give, do and makeCompound and Complex, ConditionalsWill vs be going toCoordinating Conjunctions and Comparative AdjectivesTenses and FoodConnectorsModals of Necessity and SuggestionState Verbs and Action VerbsRequest with Modal VerbsPersonal pronouns + possessive adjectives + Introgative pronounsOther quiz:
Grammar › ViewNever________any doubt about the matter.
A. has there been
B. hasn’t there been
C. there has been
D. there hasn’t been
Passive Voice › View
A: “Where were you?”
B: “Ah, I was lost on the street.”
Which sentence has the same meaning with the underlined?
A. I got lost on the street.
B. I get lost on the street.
C. I have lost on the street.
D. I’m losing on the street.
Modal Verbs › ViewPeople living in high-rise buildings _____ obey the safety rules and regulations strictly.
A. shouldn’t
B. mustn’t
C. may
D. have to
Verb Tenses › View
Identify the verb tense used within the following sentence: He writes in his journal every night.
A. simple present
B. present progressive
C. past progressive
D. future progressive
E. simple past
