How about going on a trip to Guilin?(保持原句意思) ________ _______ go on a trip to Guilin?

How about going on a trip to Guilin?(保持原句意思) ________ _______ go on a trip to Guilin?
How about going on a trip to Guilin?(保持原句意思) ________ _______ go on a trip to Guilin?

How about going on a trip to Guilin?(保持原句意思) ________ _______ go on a trip to Guilin?
应该填why not
why not,how about,what about 都表示提意见,其中how about和what about后接动名词（doing something).why not 后接原型

Shall we
想了一下，说话者并没有说到自己也去~有可能只是给他人的建议
所以amanda01224的回答更有道理
应该是why not~
希望回答对你有帮助

why not
希望对你有帮助

(What about) go on a trip to Guilin?

Would you like to go on a trip to Guilin?

Why not