It is global warming, rather than other factors, _______ the extreme weather.
A that have led to B which has caused C which are causing D that has led to
The workers are pouring _____ steel into the model.
| A．melting | B．melted |
| C．melt | D．being melted |
The television is a _____ machine.
| A．newly-inventing | B．newly-invented |
| C．newly-invent | D．newly-invention |
Most of the people _____ to the party were famous scientists.
| A．invited | B．to invited |
| C．being invited | D．inviting |
I saw the boy _____ out a moment ago.
| A．run | B．runs |
| C．how to run | D．running |
He was made _____.
| A．go | B．gone |
| C．going | D．to go |