[ Grammar ]
Many traffic accidents……by dangerous driving.
A. Cause
B. Caused
C. Are caused
D. Which are caused

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Past Tense, Recount Text, and Future TenseVerbs with Prepositions and ConjunctionsSimple Present and Present ContinuousInterrogative Pronouns & AdverbsPassive Modals, Impersonal PassiveSimple Past ContinuosPresent Forms and Narrative TensesSimple present/ past/ future tenseSimple Past TensesGrammar TOEFLOther quiz:
Past Participle › ViewThe chapters were taught by the professor this morning will be on next week’s exam.
A. True
B. False
Vocabulary and Grammar › View
. How does the author persuade readers that they shouldn’t be afraid of comets?
A. explaining that they often crash to Earth
B. giving evidence about why they are mysterious
C. telling when comets are expected to be seen
D. providing facts about comets
Grammar › ViewI ……………. jump up to 3 meters.
A. can
B. may
C. should
D. must
Mixed General Quiz › View
Los Vegas is a great place to ___ but not always a place to win.
a. gamble
b. gambol