[ Modals ]
Complete the missing word. In order for animals to survive, they ________ evolve along with their changing habitats.
A. could
B. must
C. can
D. would

Random Topics:
Interjection & Prepositional PhrasesSimple Past - Irregular VerbsUsed toModal and Phrasal VerbsTOEFL GrammarNeither/Either/All/NoneGrammar SuffixesConjunctions, Interjections and Sentence TypeAdjectives & PrepositionPresent/Future/Past Simple/Present PerfectOther quiz:
Grammar › ViewBy Christmas, I _______ for Mr. Smith for six years.
A. will have been working
B. will work
C. have been working
D. will be working
Grammar › View
Fill in the blank:
Dinosaurs existed at the beginning of time.
These times were called ___historic.
a. non-
b. pre-
c. un-
d. re-
We should wait inside _____ the rain stops.
A. as if
B. since
C. because
D. until
Grammar › View
Where did you _________ the laptop?
A. buy
B. buys
C. bought
D. buying
