Beijing was under an “orange” smog alert on Feb. 24, which marks the first time the second-highest warning level of a new system introduced last year_______.
| A．has been raised | B．raised |
| C．has risen | D．rose |
He ________ in American for five years, and now he works in Shanghai.
| A．have worked | B．worked | C．had worked | D．have been working |
China Daily is _____ a newspaper; it keeps us in touch with the world．
| A．no more than | B．not more than | C．more than | D．less than |
Many Chinese have lived abroad for years, but they still _____ the traditional customs.
| A．observe | B．behave | C．perform | D．Struggle |
Judging from his _______ look, I know it is a very _____ situation to her.
| A．confused; confused | B．confusing; confusing |
| C．confusing; confused | D．confused; confusing |
-----Will you please help me to take care of my cat when I go out?
----- ________.
| A．My pleasure. | B．It's a pleasure. | C．With pleasure. | D．At my pleasure. |