[ Grammar ]
The pupils______________ hard to put on a musical for the teachers since July.
A. work
B. worked
C. had worked
D. have been working

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Reported Speech and SubjunctivePresent Continuous TenseModal Verbs in ConditionalsSubject Verb Agreement & Subjunctive MoodAspect or tenses of VerbsVerbs with Prepositions and ConjunctionsMuch, many, a lot of, a few, a littleGrammar: Defining Relative ClausesClause Markers TOEFL GrammarInfinitive or GerundOther quiz:
Homonyms › ViewIf the traffic is jammed, why don’t you take another ___.
a. root
b. route
Relative Clause › View
We don’t know the person ______ I gave this money.
A. which
B. whom
C. whose
D. who
