If nothing __________，the oceans will turn into fish deserts.
| A．does |
| B．had been done |
| C．will do |
| D．is done |
This is the best way I could think of _______ the students _______ the rules.
A. to stop; breaking
B. stopping; breaking
B. stop; to break
D. stopped; from breaking
Last summer holiday, I went back to my hometown, _______ the neighbours and the house _______ I used to be familiar with were gone.
| A．only finding; which |
| B．only to find; that |
| C．to find; whom |
| D．found; that |
Edison _______ the way to solve the problem.
| A．found out |
| B．sought for |
| C．invented |
| D．discovered |
The climate _______ the amount of the rainfall.And this kind of climate has no _______ on my health.
| A．affects; affect |
| B．effects; affect |
| C．effects; effect |
| D．affects; effect |
They _______ all the details of the plan time and again to make sure that the project went smoothly.
| A．got through |
| B．went through |
| C．got over |
| D．dipped into |