－ Look! Mrs Green is wearing a black dress today.－ I think she _______ wear red. She looks young in red.

Sir, you_______ be sitting in this chair! It is just for women with children and old people only.

—Mike’s parents have bought a 2-floor house with a swimming pool.— Oh, it________ be very expensive.

E-Commerce ______ mislead customers at times even though it's more convenient and faster in general.

– When can I get the ticket for the opening ceremony? -- Don’t worry. You ____ get one this very afternoon.