Grammar Quiz
[ Grammar ]

Organisms living millions of years ago produced energy using retinal, which was _____ dark purple colour.

A. a

B. an

C. the

D. The

Select your answer:
A  B  C  D  E 


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Determiners › View

Choose the correct one.

A. Is there any sugar in my coffee?

B. Is there some sugar in my coffee?

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To finish your drink quickly because you are leaving is the same as to ___ up.
a. keep
b. kick
c. drink

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Think (Past tense)

A. Thought
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C. Thank

Gerunds and Modals › View

I can to have a party in my house anytime!

A. CORRECT

B. INCORRECT

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