Topics: Modal Verbs in First Conditional
If you want to have perfect white teeth, you ______ brush your teeth regularly.
A. may
B. must
C. should
D. might
Select your answer:

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Grammar › ViewYou ……… spend too much time playing computer games. It’s bad for your eyes.
A. should
B. shouldn’t
C. must
D. can
Grammar › View
Yuli : Who cleans your house?
Nina : I do
Yuli : Does Adi help you?
Nina : Never, but he …….. mother do the washing
A. Is helping
B. Helped
C. Helps
D. Had helped
E. Helping
