---Isn’t it time you went to bed, Mike?
---I _____ painting all afternoon, so I have to finish my homework now.
| A．have been practicing | B．have practiced |
| C．was practicing | D．had practiced |
_____ I toured Zhang Jiajie, I was deeply impressed with its beautiful scenery.
| A．For the fust time | B．At first |
| C．It was the first time | D．The first time |
After months of voyage, Columbus arrived in_____ later proved a new continent.
| A．where | B．what | C．which | D．that |
The door opened and in _____.
| A．he came | B．came he | C．did he come | D．did Mr Smith come |
According to the Ministry of Health, by May 1, 2003, the total SARS deaths on the Chinese mainland_____to 170.
| A．has come | B．had reached | C．increased | D．had climbed |
---Tom, keep your_____ on your studies.
--- Sure, mum. I'll keep that in_____.
| A．mind;mind | B．heart;head | C．brain; mind | D．heart;brain |