We're busy because we have so housework to do today.
David talked with a friend of ________ on the Internet for a long time yesterday.
His brother was born ______ June 16th, 1983.
Can I have _______ look at the photo of your pen friend?
Which of the following words matches the sound /'sɪŋɡl/?
---Excuse me, may I ask you a few questions?--Sure. ________.