Comets ________ planets.
A do not
B are not
C will not
D were not

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Simple Present Continuous TensePast Perfect or Past Perfect ContinuousDefinite vs Zero Article Abstract NounsGrammar & VocabularyAdjective SuffixesPhrasesArticle the or zero article (-)Modal Verbs for Permission and ObligationTenses and VoiceTo infinitive - GerundOther quiz:
Vocabulary › ViewWhat is the definition of ‘destructive’?
A. Done, chosen, etc. without deciding in advance what is going to happen, or without any regular pattern
B. Causing destruction or damage
C. A plan that lists all the work that you have to do and when you must do each thing
D. Very large, heavy and solid
Vocabulary and Grammar › View
Mr. John feels tired because he ______ hard all day.
A. works
B. worked
C. had worked
D. has been working
Grammar › ViewWhich of the following sentences contains a comma error?
A. Despite his great hunger, Roger continued his fasting for world peace.
B. The little, old man could hardly stand up due to his painful arthritis.
C. I packed my warm sweaters, long pants, and heavy coat for our trip.
D. While I was working on my homework, there was a bad thunderstorm.
Grammar › View
Our car ____________________________________ last night.
A. had stolen
B. is stealed
C. was stolen
D. is stealing
