Choose the word or phrase that best completes the sentence.
Although thunder and lightening are produced at the same time, light waves travel faster _____, so we see the lightening before we hear the thunder.
A. than sound waves do
B. than sound waves are
C. do sound waves
D. sound waves

Random Topics:
Present & Past TensesSentences vs Run-OnsWish / If only ( Present)Countable & Uncountable NounsModals of Speculation and DeductionTenses UsageComparatives, Superlatives & EquativesPast PerfectQuantifiers, Countable and Uncountable NounsCountable and UncountableOther quiz:
Vocabulary & Grammar › ViewKay: Let’s ____ to Stratford. We can ___ a Shakespeare play.
A. go/ to see
B. to go/ see
C. go/ see
D. to go/ to see
Vocabulary › View
A grade or level of subsistence and comfort in everyday life enjoyed by a community, class, or individual
A. Standard of Living
B. Capitalism
C. Socialism
D. Communism
E. Laissez-Faire
Modal Verbs › ViewDon’t eat it. I’m 100% certain that it … be poisonous.
A. might
B. must
C. could
D. may
Homonyms › View
The red cross is a ___ of emergency health care.
a. cymbal
b. symbol
