In an emergency, we ______ follow the school safety rules.
A. should
B. need to
C. must
D. mustn’t

Random Topics:
Present Perfect Simple & Present Perfect ContinuousPronouns, Sentence Structure, and ApostrophesFuture - will / going to / present continuousPronouns, Verb, ConjunctionKnee AnatomyPresent Simple or Present ContinuousPast Simple Negative & QuestionsHelping and Linking VerbsIF CLAUSEInfinitives and ING FormsOther quiz:
Vocabulary & Grammar › ViewMongolian children start to learn _____________ before they can walk.
A. horse riding
B. riding horse
C. ride horse
D. horse ridden
Conditional Sentences › View
If I ____ her address, I would send her an invitation.
A. knew
B. know
C. will know
Simple Present vs Present Continuous › ViewThe boys sometimes…….. in the park
A. run
B. runs
C. are running
D. are runing
Preposition › View
Jim was walking (across, over) the campus (in, at) noon when he met a friend whom he had not seen (since, during) summer. They stopped (in front of, around) the gymnasium and sat down (in, on) the steps. After they had talked (for, during) about ten minutes, Jim said, “I must go (toward, to) Jefferson Hall this semester. Why don’t you drop by some afternoon (over, after) classes?”
A. across//at//since//in front of//on//for//to//after
B. over//in//during//around//in//during//toward//over
C. across//at/during//around//in//during//to//after
D. over//in//since//around//on//for//toward//over
