[ Grammar ]
Select the correct word to fill in the blank.
We _____ not know why he is always absent.
A. do
B. does

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Infinitives or GerundsContractions and ConjunctionsVerb-ing and InfinitiveGrammar: is/are/was/werePersonal & Possessive PronounsPast and Present TensesFor vs SinceSimple Present - Negative & InterrogativeNouns, Pronouns, Antecedents, and Singular and PluralPresent Simple and Present ContinuousOther quiz:
Vocabulary › ViewWhat does it mean to ‘endorse’ something?
A. Being serious and eager in the way you do something
B. Being graceful and stylish in appearance
C. To show public support for something
D. A person’s sense of self-worth
Homophones › View
Whales live in the ___________ .
A. C
B. See
C. Sea
D. Si
By 10 pm all the shops ————————
A. will close
B. will have closed
C. have closed
Grammar › View
Kyle and Lisa often____________ math together.
A. study
B. studies
C. studied
D. studying