[ Tenses ]
By 2030, scientists ___ a cure for cancer.
A. will discover
B. will have discovered
C. discover
D. will be discovering

Random Topics:
Noun ClauseTypes of Simple SentencesGerunds as objects of prepositionGrammar CorrectionPerfect TenseAdjective / Noun + to InfinitiveV-ing/to-VVerb Patterns / IngPresent ProgressiveModals for Necessity and SuggestionsOther quiz:
Subject-Verb Agreement › ViewThere _______ to be some people left in that town after yesterday’s flood.
A. Have
B. Has
Perfect Verb Tenses › View
Which sentence is in the present perfect tense?
A. She had gone to the store.
B. She has gone to the store.
C. She will have gone to the store.
D. She goes to the store.
Tenses › View…you paid the taxes ?
A. Do
B. Are
C. Has
D. Have
Verb Tenses › View
The kids (play) in the garden all afternoon.
A. played
B. playful
C. plays
D. playing
