[ Grammar for TOEFL ]
_____ heated by solar energy have special collectors on the roofs to trap sunlight.
A. A home is
B. Homes are
C. A home
D. Homes

Random Topics:
Past and Present Continuous tenseProgressive TenseAcademic VocabularyMust / must notAdverb Clause ConnectorPoetry VocabularyAdverbs, Prefixes, and SuffixesModals of ProhibitionVocabulary and PhrasesPunctuationsOther quiz:
Present Tenses and Connectors › ViewAll our personnel are committed to their responsibilities, ___, they make sure the atmosphere is supportive and understanding.
A. However
B. Furthermore
C. because of
D. Although
Present Perfect Tense › View
_____________your Dad __________ the letter yet?
A. Have/sent
B. Has/ send
C. Has/ sent
D. Have/ send
Tenses and Verbs › ViewFill in the blanks with am, is, are (present tense) and was, were (past tense) The cute cat ___ my pet animal.
A. am
B. is
C. are
D. was
E. were
Passive Voice with Modals › View
Broken glass ______ handled carefully to avoid injury.
A. can be
B. must be
C. may be
D. should be
