Topics: Grammar & Vocabulary
Using eco-friendly cleaning products helps protect the environment from ______ substances.
A. harmful
B. helpful
C. healthy
D. active
Select your answer:
Random Topics:
Sentence Structure and ConjunctionsPassive Voice and ModalsSimple Present and Simple PastPast Perfect Simple TenseInfinitives for reasonsArticlesModals TensesKnee AnatomyTenses for HospitalityFuture Simple TenseOther quiz:
Vocabulary › ViewWhich event is most likely to be described as fortuitous?
A. Accidentally meeting an old friend and getting a job offer
B. Planning a party for months
C. Studying hard for an exam
D. Saving money for a new car
Present Continuous Tense › View
Look! The man (climb)..up the tree.
A. climbing
B. are climbing
C. climbs
D. is climbing