[ Grammar ]
____ it rains tomorrow, the learning trip will be cancelled.
A. If
B. Unless
C. Until

Random Topics:
Modals and Semi-ModalsComperative and SuperlativeSubject and Verb AgreementComparative Adjectivewill, be going to, would like toIntermediate GrammarThe Structural Types of SentencesRelative Clauses and etcDefinite and Zero ArticleFuture Continuous TenseOther quiz:
Modals › ViewI wouldn’t like to ______ get up at five o’clock every morning.
A. need to
B. need
C. must
D. have to
Grammar : Must (Necessity) › View
In the United States, you ___ drive on the right side of the road.
A. must
B. mustn’t
C. don’t have to
Grammar › ViewWe have a break ________ 10:30 _________ 10:45 _________ the morning.
A. from / to / in
B. at / at / in
C. at / and / in
D. at / from/ to
Modal Verbs › View
He ____ speak three languages fluently.
A. can
B. must
C. should
D. might