[ Past Tense and Neutral ]
John was working on his assignment when he saw his friend _________ over a brick on the floor.
A. trips
B. tripped
C. tripping
D. trip

Random Topics:
Verbs & AdverbsDeterminers & QuantifiersActive Voice-Present tenseNounsVerbs and AdverbsPassive Voice - Past SimpleWish clauseGrammar: wishes and regretsPreposition FormConditional TypesOther quiz:
Grammar › ViewI went to see a stand-up comedian last week. He was _________ hilarious! I laughed my head off!
A. utterly
B. a little
C. quite
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Jerry … call Lima yesterday.
A. Did
B. didn’t
C. doesn’t
D. do
Grammar › ViewShe ….the idea that she will never become famous.
A. has resigned to
B. is resigned to
Grammar › View
A: There’s a documentary about the Apollo Project on TV. Do you want to watch it with me?
B: I’d love to but I’m a ………… busy right now.
A. bit
B. rather