27．Every child is __________, with their own needs, preferences and talents.
| A．contradictory | B．similar | C．original | D．Unique |
Parents are doing all they ________ to help their children achieve their ambitions.
| A．shall | B．can |
| C．may | D．need |
________ for the fact that she broke her leg, she might have passed the exam.
| A．Hadn't it been | B．Had it not been |
| C．Was it not | D．Were it not |
His pale face suggested he ________ angry and I suggested that he ________ at once.
| A．should be; should leave | B．was; left |
| C．was; leave | D．be; left |
I ________ sooner but I didn't know that they were waiting for me.
| A．had come | B．was coming |
| C．would come | D．would have come |
According to the rules and regulations, all payments ________ be made in cash in the shopping center.
| A．shall | B．can |
| C．must | D．should |