[ Tenses ]
While Ms. Nhung was teaching in Class 4B, she ______ a piercing scream outside.
A. heard
B. has heard
C. was hearing
D. had heard

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Verb PatternsSimple Past/Past ProgressiveDeterminers & QuantifiersPast ContinuousAdjective / Noun + to InfinitiveSimple TensesAdverb of MannerPersuasive TextPresent and Past Simple PassiveWill and Will notOther quiz:
Grammar › ViewNo one is here. …… I early or late?
A. What
B. Do
C. Did
D. Am
Tenses › View
Is this the second time you (lose)……………. your job?
A. lose
B. lost
C. has lost
D. have lost