[ Tenses ]
The students ______ the floor when the headmistress came in.
A. were mopping
B. mop
C. have mopped
D. are mopping

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Grammar - Present Perfect with already, just, yetPresent/Past/Past ParticplePassive SentenceBe used to vs used toSo or SuchSpeculation with Modal VerbsInfinitivesDegree of ComparisonPast Tense vs Present TensePunctuationOther quiz:
Vocabulary Spelling Grammar › ViewRead the sentence. “Students found their seats.” Which word is the subject?
A. Students
B. found
C. their
D. seats
Grammar › View
________ unfortunate that the flight was delayed.
A. It’s
B. Its
C. Its’
Select the correct phrase to complete the sentence: “The quality control team checks the materials ___ they are delivered.”
A. after
B. before
C. while
D. during
Vocabulary › View
Your education background is a ____ factor for your future career.
A. motivated
B. well-informed
C. decisive
