单选题 ______ fine weather it is today! Let's go for a walk.

单选题 My father ______ tea every morning.

单选题 We will go to the park if it ______ rain tomorrow.

单选题 — How much ______ the shoes? -- Fifty yuan ______ enough.

单选题 — He has never been to the Great Wall, has he? — ______. He visited it with his classmates last month.

单选题 He ran ______ fast that he won the race easily.

单选题 — Would you like some milk? -- ______. I'm full.

单选题 This is the book ______ I borrowed from the library last week.

单选题 By the time I got to the station, the train ______ already left.