Our teachers always make us ________ a lot of homework.
The old man was _______ sad _______ say a word when he heard the bad news.
—Do you often help your cousin with his English? —No. He learns English _______.
_______ beautiful flowers they are!
—Did Alice sleep well last night? —No, she didn’t. She didn’t go to bed _______ 12 o’clock last night.
—Would you mind _______ in the classroom? —Sorry, I won’t do that again.