________ does your mother often run with her dog?– About half an hour.[ ]

Though we are not walking slowly, I still think that it won’t be _________ he _________up with us.

Doctor, is there_____with my legs? ____________.

A smile costs nothing, but gives so ______.

Joe: Are you taking some gifts with you when you return to America?Dan: I’m planning to do so. Have you any suggestions?Joe: __________.