Listen! Someone _________ at the door. A. knock ...

[ Present Simple & Present Continuous Tenses ]

Listen! Someone _________ at the door.

A. knock

B. knocks

C. is knocking

D. are knocking

Select your answer:

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Past Simple Negative & Questions Simple Past or Past Continuous Sentence Structure and Punctuation Have to/Has to -ed or -ing Grammar : Must (Necessity)Gerunds and Infinitives Common Error Things in English

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Vocabulary & Grammar › View

Canada has got two_______: English and French. They are both taught in school

A. ethnic groups

B. mother tongues

C. official languages

D. native speakers

Grammar › View

Choose the compound sentence that is written correctly.

A. Darien wrote the story. Elsie took the photographs.

B. Darien wrote the story and Elsie took the photographs.

C. Darien wrote the story and, Elsie took the photographs.

D. Darien wrote the story, and Elsie took the photographs.