There is_______ "s" and_______ "u" in the word "sun".
| A．a, an | B．an, a | C．a, a | D．an, an |
—I feel really tired.
—______.
| A．Lucky you. | B．You’ d better work harder. |
| C．Congratulations! | D．Why not go and have a rest? |
—Can you tell the differences between these two pictures？
—Differences? Oh, no. They look quite ______.
| A．different | B．similar | C．strange | D．interesting |
—What were you doing when we were playing basketball yesterday afternoon?
—I ______ the classroom.
| A．was cleaning | B．cleaned | C．will | D．clean |
______ our teacher was ill,______ she still came to our class to teach us.
| A．Although; but | B．Though; but |
| C．Although; / | D．If; although |
—Could I borrow your camera(照相机)?
—______, but please give it back by Saturday.
| A．I’m sorry | B．Certainly not |
| C．No, thanks | D．Of course |