We’ll have a picnic in the park this Sunday ________ it rains or it’s very cold.[ ]

It’s one ofthe things in the world to stay withfriends.—I agree. Italways makes us relaxed.

With the loss of labor，the old farmers ________at home had to choose less labor-intensive crops

I’m trying to break the _______ of getting up too late

hout the world__________advance hasbeen made in science and technology is due to education which brings forthknowledge, creation and inventions