[ Present and Past Tenses ]
It started to snow while we … to school.
A. had walked
B. have walked
C. have been walking
D. were walking

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Conditionals Type IWill or Going toPresent/Past/Past ParticpleGrammar TOEFLConditionals 1,2,3Active-Passive VoicesModals for RecommendationsSuperlative AdjectivesAdjectives & PrepositionsConditionals and Modal VerbsOther quiz:
Simple and Continuous Present Tense › ViewThe Sun _____ in the west.
A. set
B. sets
C. are setting
Grammar › View
Paula _______________ at trainers in the sports shop right now.
A. look
B. looks
C. is looking
D. are looking
Regular vs. Irregular Verb › Viewto MEET
A. Ment
B. Meet
C. Met
Tenses › View
He hasn’t written a letter yet.
A. Future Simple
B. Present Perfect
C. Past Simple
D. Present Continuous
