(2012·浙江) According to scientists, mental abilities begin to __________ from the age of 27 after reaching the highest level at 22.
| A．differ |
| B．shrink |
| C．fail |
| D．Decline |
The athlete hurt his foot in the race.,he missed the champion.
| A．Consequently | B．Unfortunately |
| C．Potentially | D．Absolutely |
When I passed the garden, I saw the boy under a tree, .
| A．seat ; read | B．seating ; reading |
| C．seated ; read | D．seated ; reading |
The visiting professor offered us some advice, of great help to our English learning.
| A．I think it is | B．I think which is |
| C．which I think is | D．which I think it is |
He gave a lot of presents to his friends, but never one to me.
| A．has he given | B．he has given |
| C．does he give | D．he gives |
In spite of his own safety, the boy, , jumped into the river to save the girl in the water.
| A．risked to be drowned | B．risked drowning |
| C．risking to be drowned | D．risking drowning |