His English is as ______ as his Chinese.

d man leads ______happy life now, buthe will never forget ______hard time when he was poor.

Listen! Someone is playing the piano in the room. It _______ be kate’s.—No, it _______ be Kate . She has gone to London. .

一Where are you going for your winter vacation一Wego to Hainan, but we are not sure.

Mountain climbing _______ be tiring and many people feel sick as the atmosphere gets thinner.