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

Random Topics:
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:
Grammar › View. Which homophone completes this sentence: “_____ going to be late.”
A. Their
B. There
C. They’re
D. Thare
Grammar and Vocabulary › View
How do you ________ on weekends?
A. stay
B. meet
C. relax
Future Perfect Tense › ViewBy 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
