In which sentence can’t you substitute must with have to?
A. You must register online before you can make a purchase.
B. I haven’t seen my grandma since Christmas. I must see her soon.
C. You must answer all the questions on the test.
D. Claire must wear glasses for driving.

Random Topics:
Tenses and OpinionsPresent Simple Positive and NegativeNarrative, Past TensesVOCAB & GRAMMARPast Perfect and Past Perfect ContinuousPast Tense, Recount Text, and Future Tense1st and 2nd ConditionalsFor vs SincePresent Perfect and Past SimpleNouns, Articles, DeterminersOther quiz:
Tenses › ViewThey ______ a yoga class when the rain started pouring outside.
A. were taking
B. used to take
C. took
Grammar › View
There … be a smart house in the future. People … do anything to make their house clean. It … clean by itself.
A. won’t, won’t, will
B. will, will, won’t
C. won’t, will, will
D. will, won’t, will
Conjunctive Adverbs › ViewWhich of the following conjunctive adverbs shows time relationships?
A. Anyhow
B. Conversely
C. Next
D. However
Gerunds and Infinitives › View
The security admits ___________ the burglar to enter the house.
A. to have allowed
B. to allow
C. to allowing
D. allowing
