That night Tom drove his car at ________we thought a dangerous speed.
| A．as |
| B．which |
| C．what |
| D．that |
Obviously, the book is for children aged between three and six.
| A．defended | B．supported | C．convinced | D．intended |
There is a(n) of 200 yuan for the person who returns the lost necklace to its owner.
| A．reward | B．prize | C．award | D．praise |
She is an excellent student in our class, and she always herself in her studies.
| A．hides | B．buries | C．covers | D．leaves |
We’ll take a honeymoon trip to Venice. Would you like to my dog for me while we are away?
| A．look at | B．search for | C．watch over | D．care about |
—Are you worried about his safety?
—Only .
| A．faithfully. | B．broadly | C．slightly | D．extremely |