able to be maintained at a certain rate or level. ...

[ Vocabulary ]

able to be maintained at a certain rate or level.

A. maintain

B. ensure

C. sustainable

D. arising

Select your answer:
A B C D E

Random Topics:

Quantifiers, Countable and Uncountable Nouns Verb and Preposition Relative Clauses with who and which Frequency Adverbs Gerunds + To Infinitive Adjectives with -ED and -ING Gerunds, Infinitives and Participles Transitive or Intransitive Verbs Relative Clauses and Past Perfect Have as verb and auxiliary

Other quiz:

Article & Preposition › View

Thank you. That was _______very nice lunch

A. a

B. an

C. the

D. no article

Tenses › View

He ……… his hands if you ………. him a soap.

A. will wash, give

B. washes, give

C. washes, give

D. wash, gives

E. will washes, give

Idioms › View

I am really fortunate getting that seat.
a. looked-out
b. lucked-in
c. lucked-out

Mixed General Quiz › View

New Zealand has lots of beautiful� ___ , about 3 million people and about 70 million sheep in an area about the size of California.
a. looks
b. scenery
c. scenes