迭择合适的介词填空。 to at for in of from on about 1. Mary is good _______ drawing. 2. I've got an email ______ English. It's _______ my friend. 3. Lingling is _______ the phone for Daming. 4. Are you ready _______ your trip _______ America? 5. How _______ chopsticks? 6. What kind ________ computer did you buy?