[ Tenses ]
What does the past perfect tense indicate?
A. An action that is currently happening.
B. An action that will happen in the future.
C. An action that was completed before another action in the past.
D. A routine action in the past.

Random Topics:
Modal Verb, Passive VoicePerfect Verb TensesModals of AdviceFirst Conditional, Future Time ClausesPresent Perfect vs Past Simple“Put” Phrasal VerbActive & Passive VoicePresent Simple QuestionsDegrees of ComparisonDefinite vs Zero Article Abstract NounsOther quiz:
Active Voice-Present tense › ViewYou have been …………………. playing since morning.
A. play
B. playing
C. plays
D. is playing
Grammar › View
Choose the correct verbs to complete the sentence.
By the time Chelsea ____ the door, her visitors ____.
_______
A. opened / had left
B. had opened / had left
C. had opened / left
Gerunds and Infitinitives › ViewEmily’s parents aren’t strict enough with her. They let her _____ whatever she likes. (do)
A. do
B. to do
Grammar › View
Choose the right conditional form: “If the concrete ___ properly, it will last for decades.”
A. is mixed
B. mixed
C. mixing
D. was mixed
