Will the new iphone cost a lot? –I ______ think so. Apple’s products are usually expensive.

John , how do you like your new job?—Very exciting, but it _____ me lots of time.

It is usually warm in my hometown in March, but it ____be rather cold sometimes.

What do you think of this film? – Great! I_______ such a wonderful film before.

It is thought that one billion people I the world, _is half the word’s workers, earn their living by farming.