1. (2020七下·绥棱期末) 完成下列交际用语，词数不限。

A: ?

B: I have a headache.

A: ?

B: It is March 27^th today.

A: ?

B: I think the book is interesting.

A: ?

B: My school trip was great

A: May I use your pen?

B: Certainly, .