[ Grammar ]
They __________ not __________ the drone before the wind picked up.
A. had / launched
B. have / launched
C. had / launch
D. did / launch

Random Topics:
Modals and Past ModalsSimple Present and Present ContinuosTo Infinitive/Bare Infinitive/GerundsAnalogyWill and Will notIn/On/At + TimeRelative & Interrogative PronounsPrepositions and Conjunctions-ing &-ed AdjectivesModals and ConditionalsOther quiz:
Complement vs. Compliment › ViewMy new boss often … me on my work.
- complements
- compliments
Grammar › View
________ China is the largest country in Asia.
A. A
B. The
C. An
D. –
Past Simple Tense › ViewThey ……………………………….. cook lunch yesterday.
A. don’t
B. doesn’t
C. didn’t
D. aren’t
Grammar › View
You _______ be careful or else you ______ slip
A. may / have to
B. should / may
C. mustn’t / can
