— Jim is very sick these days. He coughs so badly.— In my opinion, he really ________ listen to the doctor and cut down on smoking.

- Mr Jackson, __ we go rock climbing? m Yes, but you must use ropes.

--“Where is Tom?”--“He hasn’t come to school today, I think he ______be ill.”

---- ________ we go swimming in Xishuanghu Lake today?  ---- Oh, no. It’s ________ cold to swim on such days. I will catch a cold. 

The boss has given everyone a special holiday, so we ________ go to work tomorrow.