---- Do you know how to prevent the A/H1N1 flu?---- You can ask the doctor for some ________.
Practice more, _______ you’ll learn English better.
Un cle Tom will come to visit _____ next Saturday.
— Remember to write down your name on the paper. — _____
—What a fine day! Why not go out for a picnic? —__________. Let’s go. A. Pardon me B. I’m afraid not C. Sounds cool
________ you drive, you mustn’t drink wine at all. A. If B. UnlessC. Though