[ Expressing Obligation and Modals ]
The example of expressing obligation is…
A. They have to wear uniform at school
B. You should wear uniform at school
C. You aren’t allowed to wear uniform at school
D. We must not wear uniform at school

Random Topics:
Stative Verbs and TensesIn/On/At + TimeQuantifiers and AdjectivesPerfect TensesFormal & Informal WordsAdverb of TimeCity PlacesAdverbs, Modals, Preposition of timeModal RequestsGrammar - Reflexive PronounsOther quiz:
Grammar › ViewOur ___________ is very kind.
A. principal
B. principle
Grammar › View
This is _________ book.
A. Minh
B. Minhs
C. Minh’s
D. Minh’
Simple Past Tense › ViewI write a letter to Jane every month. Last month, i … a letter.
A. Have written
B. Is writing
C. Wrote
D. Write
Prepositions › View
He suffers ___ chronic back pain.
A. in
B. to
C. from
D. with
E. on
