My sister met him at the street yesterday afternoon, so he __________ your lecture.
| A．shouldn’t have attended | B．needn’t have attended |
| C．mustn’t have attended | D．couldn’t have attended |
Many Chinese like watching People Who Moved China, which honors those _____ contributions should be remembered and learned from.
| A．whose | B．who | C．that | D．Their |
Research shows that teenagers ________ talk about their day with family members at the dinner table are less likely to engage in high-risk behavior.
| A．what | B．who | C．whom | D．\ |
He had to sell his luxury car, ________ his company was in debt.
| A．before | B．until |
| C．while | D．for |
Jane had just finished her homework ________ her mom asked her to practice playing the violin yesterday.
| A．when | B．while |
| C．after | D．before |
Just be patient．You _____ expect the world to change so soon．
| A．can’t | B．may not |
| C．needn’t | D．didn’t |