[ Grammar ]
He ___ (write) an email when his colleague came to his desk.
A. write
B. writing
C. was writing
D. wrote

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Vocabulary and Grammar › ViewThe artisan is delighted to ______ to you the craft of creating prints in an old-age style.
A. demonstrate
B. explain
C. express
D. provide
Used to & would & Past Simple › View
My parents and I ______ at this hotel many times before.
A. would stay
B. would stayed
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A. are
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Grammar › View
What is a verb that helps the main verb in a verb phrase
A. action verb
B. helping verb
C. linking verb
D. adjective