[ Passive Voice with Modals ]
Plastic bottles ______ turned into new products.
A. can be
B. must be
C. may be
D. should be

Random Topics:
VerbsModal Auxiliaries and Similar ExpressionsTenses and Figurative LanguagePresent TensesHave vs. HasPresent and Past TenseGrammar TOEFLGrammar - direct/indirect objectsTenses: Present simple, Past Simple, Future SimpleMust or Mus notOther quiz:
Grammar › ViewWhat is the part of speech of the word “under” in the sentence “The cat is under the table”?
A. noun
B. verb
C. adjective
D. preposition
Phrasal Verbs › View
The company was ________ by a group of friends.
A. set up
B. set in
C. set down
D. set off
Grammar › ViewWe ________ lots of fruit at the farmers’ market yesterday.
A. buyed
B. bought
C. buy
Grammar › View
The woman with the bright red shoes ________ to speak with the manager.
A. wish
B. wishes
C. are wishing
D. have been wishing
