The sentence needs _______.
| A．improve | B．a improvement | C．improving | D．improved |
The government has to close those small factories to prevent the water of the river ______.
|
—Will you go swimming with me this weekend?
—______.
| A．All depend | B．It depends | C．It depends on | D．All depends on |
21.Bob got seriously injured in the traffic accident, but luckily, the doctor came __________to save his life.
| A．in time | B．on time | C．at times | D．at last |
He sighed again and the failure in physics seemed to have completely ______ his confidence.
| A．damaged | B．attacked | C．shocked | D．struck |
— How is the result, doctor?
— Well, your health is ______ good, but you do have a few minor problems.
| A．occasionally | B．frequently | C．generally | D．regularly |