I．单项选择。（每小题1分，计15分）
( )1. This is _________ alarm clock.
A. a B. an C. the D. /
( )2. We don’t like_________.
A. broccoli B. broccolis C. a broccoli D. broccolies
( )3. _________. Is this your pen?
A. Sorry B. Hello C. Excuse me D. Hi
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