5. --- My grandmother ______ dancing as a hobby in her sixties, and she is really good at it now. --- It’s never too old to learn.
Mr smith has two children.One is a teacher and________ is a doctor.
The students from America______ the Chinese lessons every day.
I guess Tom and his sister Celia enjoyed at the party.
. —What if you have two days_______?—I'd like to go_______ a trip_______ Suzhou.
. Did you write a report _______ pandas________ danger for the club yesterday evening?