The silly crow（乌鸦）wanted to______ its song but none would enjoy it.
| A．take off | B．show off |
| C．turn off | D．get off |
The firemen in Tianjin explosion scene devoted their lives ____ the spread of pollution.
| A．to preventing | B．to prevent |
| C．for stopping | D．to stop |
As a doctor, you________.
| A．can be too careful |
| B．can’t be too careless |
| C．can’t be too careful |
| D．can be so careless |
Listen carefully, ______ you will miss what the teacher says. Studying hard makes _______ possible to achieve success.
| A．or, it | B．and, that |
| C．but, you | D．so, us |
A miss is ________ a mile.
| A．as much as | B．as well as |
| C．as far as | D．as good as |
The high-speed railway will ______ Sunshine Town _____ Moonlight Town.
| A．connecting, to | B．connects, with |
| C．connect, to | D．connected, with |