[ Subordinate Conjunctions ]
Identify the subordinate conjunction in the following sentence: In the morning, I whistle while I work.
A. In
B. The
C. While
D. Work

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Relative Clauses and UsageInfinitive FormsConjunctions and CommasModals and Modal PerfectsModal Verbs for SpeculationPast simple regular verbsClauseQuantifiers with NounsTimeNoun, Quantifiers and SuffixesOther quiz:
Grammar for TOEFL › ViewOf all the evidence that has piled up since Webster’s paper was published, there is no new ideas to contradict his original theory.
A. has piled
B. is
C. new
D. to contradict
Subject-Verb Agreement › View
Not only the students, but also the teacher (has, have) been unhappy.
A. Has
B. Have