[ Grammar ]
They have known each other since ……….
A. to days
B. tommorow
C. 2003
D. three days
Select your answer:

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Commas and Subordinating ConjunctionsPresent Perfect and Simple Past TenseComparisonPresent Continuous for FutureFuture Simple TenseShould and Shouldn'tPresent Perfect: for/sincePresent Simple TensePast ParticipleAdverbs of frequencyOther quiz:
Grammar › ViewThe weather today will be rainy, ____ we will not go outside for recess.
A. or
B. but
C. and
D. so
Grammar › View
It is the smallest unit but the integral part of a language.
A. letters
B. words
C. phonemes
