When will the woman leave？（） A: At 5:45. B: At 6:00. C: At 5:30. D: At 5: 15.

I. Now you will hear six short conversations. A question will be asked after each conversation. Listen carefully and choose the best answer to each question you hear. 1. A. 5:00 B. 5:03 C. 5:45 2. A. 9:00 B. 9:30 C. 9:20 3. A. 10:00 B. 8:00 C. 9:00 4. A. 7:50 B. 7:15 C. 8:15 5. A. 5:15 B. 5:30 C. 5:45 6. A. 10:00 B. 10:30 C. 9:30

W: I hope the library will be open on Saturday.M: The sign says, "library hours: weekdays 8:00 a. m. to 9:00 p. m. , on Saturdays 9:00 a. m. to 5:00 p. m. , closed on Sundays. " When will the library be open on Saturday（） A: 9:00 to 5:00 B: 8:00 to 9:00. C: 5:00 to 9:00 D: 5:00 to 9:00

Whatis the departure time for the man’s flight A: [A] 3:30． [B] 5:00． B: [C] 6:00． [D] 7:30．

蛋白质、碳水化合物、脂肪的食物热效应分别是()。 A: 5%－6%、4%－5%、 30%－40% B: 4%－5%、 5%－6%、30%－40% C: 30%－40%、5%－6%、4%－5% D: 5%－6%、30%－40%、4%－5% E: 3%－6%、20%－30%、4%－5%