—The fishermen should have been warned of the bad weather．
— ，but they didn’t listen to it．
| A．So were they | B．Yes．they were |
| C．So should they | D．Yes．they should |
While working outdoors，Linda was________by the heat and fell to the ground，unconscious.
| A．astonished | B．depressed |
| C．overcome | D．hit |
The man answered the phone in a loud voice at the meeting，________made Andy annoyed.
| A．that | B．what |
| C．who | D．which |
There is no simple answer，________is often the case in science.
| A．as | B．that |
| C．when | D．where |
Finding information in today’s world is easy.The ________is how you can tell if the information you get is useful or not.
| A．knowledge | B．ability |
| C．competition | D．challenge |
Helen has been looking for a job over the whole year，feeling she can’t get________without work experience.
| A．one | B．it |
| C．that | D．this |