________ basic first－aid techniques will help you respond quickly to emergencies.
| A．Known | B．Having known |
| C．Knowing | D．Being known |
These two areas are similar ________ they both have a high rainfall during this season.
| A．to that | B．besides that | C．in that | D．except that |
If Tim carries on working like this, he'll ________ sooner or later.
| A．break down | B．give up | C．get down | D．hold on |
All the doctors in the hospital insisted that he________ badly wounded and that he________ at once.
| A．should be; be operated on | B．were; must be operated on |
| C．was; should be operated | D．was; be operated on |
This crop does not do well in soils ________the one for which it has been specially developed.
| A．outside | B．other than | C．beyond | D．rather than |
In the face of ________ failure, it is the most important to keep up ________ good state of mind.
| A．/; a | B．a; / | C．the; / | D．/; the |