[ Vocabulary & Grammar ]
Over the past 10 years, pollution ___________ on the rise in most countries of the world.
A. was
B. has been
C. has been being
D. is
Select your answer:

Random Topics:
Past Perfect or Past Perfect ContinuousAuxiliary Verbs & Question TagsComperative and SuperlativePerfect TensesAuxiliary ModalNouns & PronounsTime ExpressionsGrammar - Present Perfect with already, just, yetPresent Simple and Modal VerbsAsking for and Giving OpinionOther quiz:
Simple Past Tense › ViewI ……………………… to school alone when my friend was coming late.
A. walked
B. walk
C. was walking
D. is walking
Mixed General Quiz › View
The game ended in a tie.
a. What a bargain!
b. Who bought the tie?
c. How come?
