[ Adverbial Clauses ]
______ to the classroom after the break time, he found his bag was not there.
A. While he is returning
B. When he returned
C. Before he had returned
D. After he has returned

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Comparative Adjectives › ViewLondon is _________ than Glasglow.
A. more busy
B. busier
C. busyer
Grammar › View
If I get the best grades in my class, my parents _____ happy.
A. Are
B. Will be
C. Were
D. Would be
Which of the following is an example of the Past Continuous tense?
A. She is writing a letter now.
B. She will be writing a letter at 3 PM tomorrow.
C. She was writing a letter when he arrived.
D. She writes a letter every day.
Grammar › View
Don’t forget ____ following rule.
A. a
B. x
C. an
D. the
