The work is so difficult that I don’t know _______ to do it.A. what B. how C. where
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. ________.
--- You will have to stay in bed for three days. --- ________.