[ Grammar ]
Carbon dioxide is produced in huge amounts when_______ are burned.
A. greenhouse gas
B. deforestation
C. power plant
D. fossil fuels

Random Topics:
Tenses and ArticlesFuture Tenses and ModalsVerb FormsConditionals III - Mixed 1st, 2nd & 3rd ConditionalsGerund and InfinitivesGrammar ModalsUnscramble SentenceFuture PlansGrammar: Have toModal Verbs and PermissionOther quiz:
Modal Verbs › ViewYou…………………..have peppers on your pizza, but you can if you want to.
A. mustn’t
B. shouldn’t
C. don’t have to
D. doesn’t have to
Grammar › View
Choose the sentence that is written correctly:
A. Making the bed, my cat crawled under the covers.
B. My cat crawled under the covers while I was making the bed.
Grammar › ViewYou have to make a hotel ______ reservation in advance.
A. expensive
B. accommodation
C. seaside
Grammar › View
My classmates ____ our teacher postpones the exam.
A. wish
B. hope
