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

Random Topics:
Object PronounsPreposition after some VerbsConjunctions & InterjectionsNouns & Pronounsanother/the others/each other/one anotherReported - GerundAdverbs or AdjectivesLinking WordsHelping and Linking VerbsParticipal PhrasesOther quiz:
Past Continuous Tense › ViewWhat/ doing/ were/ yesterday/ ?/ you
A. What were you doing yesterday?
B. What you were doing yesterday?
C. What you doing yesterday?
D. What was you doing yesterday?
If Clause › View
If it _____ rain tomorrow, we’ll have a picnic.
A. doesn’t
B. wouldn’t
C. didn’t
D. won’t
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
