Jacob: Hi, Emma. I can't do my History homework.

Emma: Why not? What's the problem?

Jacob: I've lost my notes.

Emma: (13).............................................

Jacob: I know. Where are the questions that we have to answer?

Emma: (14)..................................................

Jacob: Thanks. And when do we have to give the homework to Mrs. Jane?

Emma: (15).................................................

Jacob: OK. Have you done yours yet?

Emma: (16)...............................................

Jacob:Great! I'll try and do it now.

Emma: (17)..............................................

Jacob: Thanks. Bye!

And if your journey is short, what about (21) __________ or going by bike?