_________ in the fields on a March afternoon，he could feel the warmth of spring．
| A．To walk | B．Walking |
| C．Walked | D．Having walked |
I am afraid that your request to speak at the ceremony is not quite _______, because we have already had everybody _______ ______.
| A．in place; speak; in place | B．in place; to speak; in place |
| C．out of place; speaking; in place | D．in place; to speak; in the place |
________ confidence in yourself is the biggest barrier _______ greater progress in your work.
| A．Lacking of; to making | B．Lack of; to make |
| C．Lack of; to making | D．The lack of; to make |
From the ________ shown in the dead body, he ________to death by a certain poisonous chemical, but I can’t tell exactly which.
| A．symptoms; must have been poisoned | B．signs; should have been poisoned |
| C．symbols; could have been poisoned | D．appearances; may have been poisoned |
The housewife got her hands and arms _____ while trying to pour the boiling water from the kettle into the thermos; she ______ some healing ointment to her burn but the pain was still unbearable
| A．burned; put | B．burnt; used | C．burnt; dressed | D．burnt; applied |
In case of emergency, whether knowing how to apply first aid or not really ________ in matters concerning wounds like swollen wrists, broken arms, burns, cuts, and so on.
| A．makes difference | B．makes a difference |
| C．makes differences | D．makes different |