I’d like to trek ______ the jungle.
---She’s never been to Hainan, ________?---________. She went there last week for the first time.
---Why did you buy a radio?--- ______ English.
---Could you please come to the museum with me this afternoon?---Sorry, I ______ . I have to take a piano lesson at 2 pm.
---We can use MSN to talk with each other on the Internet.---Really? Will you please show me ________ it?
My brother used to _______ up late, but now he is used to _______ up early.