[ Expressing Obligation and Modals ]
You …. answer the teacher’s questions.
A. mustn’t
B. must

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Have vs. HasWill & Be going toPresent SimplePhrasal Verb and ModalEmployment VocabularyTime Clauses of FutureZero & First ContidionalAdjectives with PrepositionTenses and Time MarkersComparative and Superlative AdjectivesOther quiz:
Grammar › ViewFloods can cause tremendous damage. They can ruin houses, roads and buildings. Floods can take down trees and cause mudslides. It often leaves mud, sand and debris behind. It can take months to clean up after a flood.
What is the main idea?
A. Floods can cause a lot of damage.
B. Floods cause mudslides.
C. Floods damage houses and roads.
Present Tense › View
It _____ cool in Arequipa today.
A. is
B. was