[ Grammar ]
The boys are tired because _________ their homework since they got home.
A. they’ve been doing
B. they’ve done
C. they’ve been done

Random Topics:
Adverbs of How Something is DoneNoun QuantifiersVerbs of movementand, so, but, becauseAdverbs (manners & modifiers)Has Got & Have GotPresent/Past/Past ParticpleModal Verbs for Possibility-ed or -ingTenses - Pasive VoiceOther quiz:
Gerund vs. Infinitive › ViewWhen it began ____________, we had to stop the baseball game and reschedule it.
A. To pour
B. Pouring
C. Either is fine and they mean the same thing
D. The meaning changes but either is fine
Grammar for TOEFL › View
_____ test positive for antibiotics when tanker trucks arrive at a milk processing plant, according to federal law, the entire truckload must be discarded.
A. Should milk
B. If milk
C. If milk is
D. Milk should
Grammar › ViewThis year our class _________ Arabic.
A. studied
B. study
C. will study
D. is studying
Past Simple Tense › View
What _____you (do) ______ last night?
A. did/ do
B. did/ did
C. did/ does
D. did/ doing
