[ Simple Past vs Past Continuous Tense ]
A loud noise woke me up ——— I was sleeping happily.
A. while
B. when

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Grammar › ViewJohn’s students were running around when he _________ at the classroom.
A. arrived
B. was arriving
Tenses › View
We ______ (not eat) at that restaurant last night because it was closed.
A. don’t eat
B. didn’t eat
C. aren’t eating
D. won’t eat