—What do you think our descendants（后代） be like in thousands of years?
—Who knows exactly what happen to human beings?
| A．will; should | B．can; must | C．shall; might | D．would; may |
The flight was put off due to the typhoon. Otherwise, we______ the beautiful scenery in Greece now.
| A．would be enjoying | B．would have enjoyed |
| C．will enjoy | D．must have enjoyed |
We are living in an age ______ we treasure very much, because it sees man’s rapid development.
| A．which | B．when | C．where | D．what |
These comments are not directly ______ to the inquiry about safety standards.
| A．controversial | B．accessible | C．appropriate | D．relevant |
______ to nuclear radiation, even for a short time, may influence genes in human bodies.
| A．Exposed | B．Being exposed | C．To expose | D．Having exposed |
We are short of clean safe drinking water, which is found to be the ______ in many third world countries.
| A．example | B．event | C．case | D．object |