[ Vocabulary ]
atmosphere
A. real or imaginary line through the center of an object
B. half of the sphere of Earth
C. a blanket of gas surrounding a planet
D. an organization in the United States that directs space travel and research
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Conditional Sentence 0, 1Verbs with Prepositions and ConjunctionsQuantifiers / Prepositions of Time and Comparative AdjectivesTransportation VocabularyConditional TypesAspect or tenses of VerbsSimple Present and Simple PastNouns and QuantifiersSentence CompletionInfinitives or GerundsOther quiz:
Grammar › View________ you are very rebellious implies that you are a lastborn.
A. That
B. What
C. By the fact that
Grammar - Punctuation › View
Prof Diaz have you met Dr Petrozelli?
A. Prof. Diaz, have you met Dr. Petrozelli?
B. Prof. Diaz have you met Dr. Petrozelli?
C. Prof Diaz, have you met Dr. Petrozelli?
D. Prof. Diaz, have you met, Dr. Petrozelli?
Simple Past Tense › ViewLast week our class ____ early in the morning.
A. began
B. begin
C. begun
D. beginned
Definite & Indefinite Pronoun & Conditionals › View
If people used cars less, the air … much cleaner.
A. would be
B. would have been
C. will be
D. was