---Could you let me know ________ yesterday ?
---Because the traffic was heavy .
| A．why did you come late | B．why you came late |
| C．why do you come late | D．why you come late |
—How are you going to be？
—I’m going to practice basketball every day.
| A．a basketball player | B．a teacher |
| C．a pianist | D．a pilot |
Newton was playing under an apple tree ____ an apple fell onto his head.
| A．when | B．while | C．after | D．before |
“The clouds became dark.” The sentence structure is ________.
| A．S+V+IO+DO | B．S+V+DO+OC | C． S+V+DO | D．S+V+P |
Girls, I will tell you ________, and you can finish it ________.
| A．what to do; on your own | B．what to do; by yourself |
| C．how to do; by yourself | D．how to do; alone |
—He doesn’t like making friends with other people, does he?
—___. He always stays at home and never says anything about himself.
| A．Yes, he does. | B．Yes, he doesn’t. |
| C．No, he does. | D．No,he doesn’t. |