[ Modals ]
People ___ recycle to help the environment.
A. can
B. ought to
C. must
D. may

Random Topics:
Conditionals and Modal VerbsParticiple Clauses & Cleft SentencesTenses and FoodPersonal Pronouns and VerbImperative SentencesPassive Voice - Past SimpleQuantifiers: too many, too much & enoughModals "Should"Adverbial Clause of Cause and EffectPresent Simple vs Present ContinuousOther quiz:
Grammar › Viewsynonym for ‘ancestor
A. antecedent
B. forefather
C. predecessor
Mixed General Quiz › View
The Ohio River is one of the most important rivers ___ the United States.
a. on
b. at
c. in
If I listen to classical music, I can ….. good poems.
A. written
B. wrote
C. write
D. has written
Grammar › View
I saw them crossing the street a while back.
A. infinitive
B. gerund
C. participle
D. not a verbal
