Điền từ thích hợp

Further
If you multiply 4 by 5, you _____ 20 *
get
gets
will get

I don’t mind ______ late, as long as the company shows their appreciation *
working
work
to work

You should offer _______ carry heavy things for old people. *
helping
to help
help

I really enjoy___________TV with my parents. *
watch
watching
to watch