[ Modal Verb ]
______ to we to knock if the door is closed?
A. ough
B. should
C. had better
D. can

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Object PronounsPreposition after some VerbsConjunctions & InterjectionsNouns & Pronounsanother/the others/each other/one anotherReported - GerundAdverbs or AdjectivesLinking WordsHelping and Linking VerbsParticipal PhrasesOther quiz:
Grammar › ViewShe ______ the questions tomorrow.
A. answers
B. answered
C. will answer
D. was answered
Modals and Semi-Modals › View
We ____ buy any materials for the arts and crafts class. It’s all provided by the school.
A. need
B. must
C. don’t have to