There is no doubt _________ the world climate has been changing in recent years.
| A．that | B．what | C．if | D．whether |
A number of endangered animals are nowadays.
| A．dying away | B．dying out | C．dying off | D．dying from |
difficult it might be, I will try my best to work it out.
| A．Whatever | B．How | C．However | D．What |
Standing too close to watch TV your eyesight.
| A．affects | B．effect | C．affect | D．effects |
When to go for the on-salary holiday yet?
| A．are not decided | B．have not been decided | C．is not being decided | D．has not been decided |
I have got four day's holiday to Paris. I _______ my father.
| A．am taking | B．had taken | C．took | D．have taken |