—Helen we are taking a boat trip to Hainan this weekend. Would you like to go with us?—Th

问题补充：

—Helen, we are taking a boat trip to Hainan this weekend. Would you like to go with us?

—That sounds exciting. I’d like to, but I can’t. !

A. Goodbye

B. Very sorry.

C. Have a nice trip

D. I envy you.

答案：

A. Goodbye

B. Very sorry.

(答案→)C. Have a nice trip

D. I envy you.

解析：考查交际用语。A. 再见 B. 非常抱歉 C. 祝你旅途愉快 D. 我羡慕你。句意：海伦，本周末我们要乘船去海南旅行。你和我们一起去吗？——这听起来很令人兴奋。我想去，但是我不能。祝你们旅途愉快。故选C。