----Must I clean the window now?
---- No, you _____.
| A．mustn’t | B．needn’t | C．can’t | D．may not |
—How did he break his head while swimming?
—my warnings, he dived straight into the shallow water.
| A．To ignore | B．Ignored |
| C．Ignoring | D．Being ignored |
It remains to be seenNorth Korea will remain stable under its new young leader.
| A．when | B．whether | C．why | D．that |
The traffic problems have severely affected economic development. , we must spare no efforts to solve them.
| A．Furthermore | B．Therefore |
| C．Meanwhile | D．Nevertheless |
Our English teacher hasthe English language in this text to make it easier for us to understand.
| A．changed | B．simplified |
| C．developed | D．combined |
I have to drive to the railway station tothe experts from Shanghai.
| A．take in | B．pick up |
| C．draw on | D．bring in |