500
Which blank can each phrase be used in? whatsit, what's-her-name, and all that, and so on, what's-his-name, thingummy, thingy, and so forth; Did you talk to Maria and (1) _____? They said that they'd plan activities for the trip next weekend - hiking, biking, kayaking, (2) _____. But I need to know if we need that inflatable (3) _____ - you know, to sleep on?
(1) what's-her-name/what's-his-name; (2) and all that/and so on/and so forth; (3) whatsit/thingummy/thingy