[ 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:
Gerunds › ViewPablo is used to eating chocolates.
A. As a subject
B. As a direct object
C. After preposition
D. Some particular verbs
Future Tenses › View
People ______holidays in space in the 22nd century.
A. will have spent
B. will be spending
C. will spend
D. will have been spending
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
