The research they had been devoted to ______ to be of great value to the cancer patients.
| A．is proved | B．proves | C．has proved | D．proved |
If I find someone who looks like the suspect, my reaction will be to tell the police．
| A．immediate | B．sudden | C．casual | D．typical |
Now there are some laid-off workers delightedly taking up the work topatients in hospitals．
| A．look on | B．take on | C．wait on | D．feed on |
On her birthday, she received from her parents a nice present _a note was attached, saying "We love you so much"．
| A．which | B．to which | C．in which | D．that |
Find ways to praise your children often, you'll find they will open their hearts to you．
| A．till | B．so | C．and | D．while |
You have failed to do what you _to and I'm afraid the teacher will blame you．
| A．will expect | B．will be expected | C．expected | D．were expected |