18.How long have
19.How soon
20.What should do
21.isn't it
22.are you
23.will you
24.has he
25.No I haven't
26.has been collecting
18.How long have
19.How soon
20.What should do
21.isn't it
22.are you
23.will you
24.has he
25.No I haven't
26.has been collecting