[ Adverbial Clauses ]
I’m sure there will have been some changes ______ into effect.
A. until the new policy came
B. when the new policy had come
C. while the new policy is coming
D. by the time the new policy comes

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Can vs CouldConditional Sentence Type 0-3Conditional Sentence Type 1Coordinating and Subordinating ConjunctionsSome & AnyPresent Tense vs Present ContinuousComplex PrepositionsBASIC GRAMMAR - PRONOUNSPresent Tense vs Past TenseSentence Adverbs & Third ConditionalOther quiz:
Grammar › ViewThe city wants to create (many) parks than it currently has.
A. more
B. most
Grammar › View
Bruno watched TV _____ his brother was having his teeth cleaned.
A. since
B. unless
C. while
D. before