---Could you tell me the_______of making such tasty cakes?
---Well，I just follow the instructions in the cookbook.
| A．time | B．method | C．cost | D．menu |
We all know that learning a skill _________ time and effort.
| A．requires | B．reduces | C．removes | D．repeats |
Man’s understanding of nature is developing ________. It never stays at the same level.
| A．at the right time | B．for the first time |
| C．from time to time | D．all the time |
______ you are middle school students, you should learn to how to look after yourselves.
| A．Though | B．While | C．Since | D．Unless |
---What do you think of ____ talent show in our school? ---I should say it was ___ great success.
| A．/; a | B．a; the | C．the; / | D．the; a |
Which sign tells us the way out of a building?
| A．ENTRANCE | B．PUSH | C．EXIT | D．PULL |