Thunder occurs as ____________ through air, causing the heated air ...

[ TOEFL ]

Thunder occurs as ____________ through air, causing the heated air to expand and collide with layers of cooler air.

A. an electrical charge

B. passes an electrical charge

C. the passing of an electrical charge

D. an electrical charge passes

Select your answer:
A B C D E

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Preposition & Gerund › View

I’m afraid your dance routine will interfere from ______ .

A. study

B. studies

C. studied

D. studying

Sentence Structure and Punctuation › View

Select the sentence that correctly uses transitional phrases.

A. Consequently, he missed the bus he was late to school.

B. He missed the bus; consequently, he was late to school.

C. He missed the bus, consequently he was late to school.

D. He missed the bus. Consequently he was late to school.

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Our boss made us _____ extra hours.

A. to working

B. working

C. work

D. to work

Comma › View

Choose the correct sentence.

A. Swinging the door open quietly the two police officers surprised a young burglar as he worked to disconnect the cable wire from the television set.
B. Swinging the door open quietly, the two police officers surprised a young burglar as he worked; to disconnect the cable wire from the television set.
C. Swinging the door open quietly; the two police officers surprised a young burglar as he worked to disconnect the cable wire from the television set.
D. Swinging the door open quietly, the two police officers surprised a young burglar as he worked to disconnect the cable wire from the television set.