[ Past Continues Tense ]
The students ___ Science while the teacher ___ Geography.
A. were studying , was teaching
B. was studying , were teaching
C. is studying , are teaching
D. are studying , is teaching

Random Topics:
Gerund, Participle, Infinitive, or AppositiveVerb-ing and InfinitiveAdverbsPresent, Past, Present Perfect and ComparativeTime Clauses of FutureModal Verbs of Certainty and PossibilitySecond and Third ConditionalModal Verbs of Deduction and SpeculationPresent Tense (Negatives and Questions)Sentence Adverbs & Third ConditionalOther quiz:
Vocabulary › Viewwordy; long-winded or unfocused (adj)
A. efface
B. diffuse
C. salvage
Grammar › View
He told us he ………………………….. a big tiger.
A. have seen
B. has seen
C. had seen
D. have see
Grammar › ViewThe dog ___ like to swim in the pool.
A. don’t
B. doesn’t
Grammar › View
Read and complete: I’ve _______ in a freezing cold lake.
A. Swim
B. Swam
C. Swum