_____ you make a plan for study, you have to follow it.
| A．Even | B．Once | C．Unless | D．Until |
--- I cannot find Mr. Smith. Where did you meet him this morning?
--- It was in the hotel ____ he stayed.
| A．that | B．where | C．which | D．the one |
The workers ______ the glasses and marked on each box“ This Side Up”
| A．carried | B．delivered | C．pressed | D．packed |
We _______ on this project for four hours. Let’s 
have a rest.
| A．are working | B．have been working | C．worked | D．had worked |
In organic farming, natural waste from animals are made use of ________ the fields.
| A．fertilizing | B．to fertilize | C．in fertilizing | D．to fertilized |
In the examination, anyone ___________ will be punished.
| A．finding cheating | B．found to cheat |
| C．found cheating | D．was found cheating |