_______ the teacher explain this properly?
A. Do
B. Did
C. was
D. had

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Common ErrorRelative Clauses beginning with PrepositionsPrepositions and ArticlesGerund, Participle, Infinitive, or AppositiveFuture Simple TensesGrammar and Sentence CorrectionTenses and Figurative LanguageAdverb Clause ConnectorPresent Perfect vs Past Simple TenseSentence Structure and Verb TensesOther quiz:
Grammar › ViewThey couldn’t ___ what she was saying.
A. understood
B. understand
C. understands
Passive Voice › View
The police arrested the suspects this morning.
A. The suspects were arrested by the police this morning.
B. The suspects was arrested by the police this morning.
C. The suspects are arrested by the police this morning.
D. The suspects was arrest by the police this morning.
Simple Past Tense › ViewSarah read three comics books last month.
Change the sentence into Negative form.
A. Sarah did not read three comics books last month.
B. Sarah did not red three comics books last month.
C. Sarah does not read three comics books last month.
D. Sarah was not read three comics books last month.
Grammar › View
She slept ____________and had a headache when she got up, so we couldn’t go out.
A. too
B. enough
C. too much