[ Grammar ]
The factory was accused ____ having caused higher level of pollution to the environment.
A. about
B. on
C. of
D. for

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Past and Present Continuous tensePresent Perfect and Past TensesAuxiliary Verbs, if, unless and ModalMain Idea and Sentence StructurePhrasal Verbs and Verb FormsWish + Verb 2Progressive TensesPre-intermediateAspect or tenses of VerbsTenses and Time MarkersOther quiz:
Has and Have › ViewWe ___ a big class last year.
A. have
B. has
C. had
Wh Questions › View
Q : _______ many people are there in your family?
A : There are 4 people in my family.
A. Why
B. Where
C. When
D. How
Grammar › ViewDo you know anything about ________________ stamps?
A. collecting
B. to collect
C. collect
Grammar › View
My uncle has built a concrete wall _________ his house.
A. over
B. above
C. around
D. through
