[ Modal Verbs ]
If your sick leave is no longer than 3 days, you ___________attach a medical certificate.
A. don’t have to
B. mustn’t

Random Topics:
Degrees of AdjectivesInfinitive GerundFirst & Second ConditionalSuperlative & Comparative AdverbsGerund, Infinitive, Bare VerbVerb BEModals of Obligation and PermissionGrammar: Used to, Would, Be used to, Get used toRegular and Irregular AdverbModals of DeductionOther quiz:
Grammar › ViewTech Seng looks very much like ____ father.
A. his
B. my
C. him
D. her
Grammar › View
I ________ in Ho Chi Minh City for three years. Now I am living in Hanoi with my husband.
A. lived
B. have lived
C. have been living
D. am living
Grammar › ViewAn Elephant hurt ………. when it tried to get out of the zoo yesterday.
A. myself
B. himself
C. herself
D. itself
Simple Present Tense › View
___ your bestie come to your house every Sunday?
A. Does
B. do
C. doing
D. done
