[ Simple Past vs Past Continuous Tense ]
I_________understand what they ________ about.
A. did not/ talked
B. did not/ were talking
C. did not/ was talking
D. do not/ were talking

Random Topics:
Main Idea and Sentence StructureConjunctions, Interjections and Sentence TypeModals and Adjectives (ed-ing)used to, be used to, get used toPreposition and Word FormConjunctive AdverbGrammar - Countable/ UncountableAdjective SuffixesConjunctions - ConnectorsPassive Voice, Modals of Deduction and First ConditionalOther quiz:
Idioms › ViewHe’s very talented when it comes to computers.
a. a worm
b. a whiz
c. a wood
Grammar › View
The boy _______ threw the ball was blond.
A. Himself
B. That
C. Which
D. Who
Which modal verb is used in affirmative sentences to express strong obligation or necessity?
A. should
B. might
C. must
D. could
Prepositions › View
I am writing a book … grammar.
A. in
B. on
C. at
