题目：
按要求完成下列各题。
1. I had a good trip. （变为一般疑问句）
__________________ a good trip?
2. It's 5:15pm.（就画线部分提问）
_____________________________
3. This is our friend Danny.（变成否定句）
_____________________________
4. 见到你很高兴。
Nice______________ you.
5. He's at the airport.（就画线部分提问）
__________________________________
答案：
1. Did ,you, have 2.What time is it?
3. This isn't our friend Danny. 4. to, see/meet 5.Where is he?
