We don’t live here;we_____.
| A．just visit | B．are just visiting | C．just visited | D．have just visited |
What a mess！Tom，I have told you over and over again not to leave everything.
| A．in place | B．in the place | C．out of place | D．out of the place |
It shows that a knowledge of first aid can make a real.
| A．effect | B．effort | C．importance | D．difference |
The cool water stops the burning process，prevents the painunbearable and reduces swelling.
| A．become | B．became | C．becomes | D．becoming |
Burns are called first，second or third degree burns，which layers of the skin are burned.
| A．depending on | B．depended on | C．depend on | D．to depend on |
First aid is a temporary form of helpto someone who suddenly falls ill or gets——before a doctor can be found.
| A．giving；injured | B．given；injuring | C．given；injured | D．giving；injuring |