His parents both died in the traffic accidents, ________ him a lot of debts.
A．having left |
B．left | C．to leave | D．leaving |
Many countries are increasing their use of natural gas, wind and other forms of ____.
| A．energy | B．source | C．power | D．material |
Here's my card. Let's keep in ____.
| A．touch | B．relation | C．connection | D．friendship |
I have tried to keep his advice in ____ when writing this book.
| A．head | B．heart | C．mind | D．brain |
--- Can you shoot that bird at the top of the tree?
--- No, it's out of ____.
| A．range | B．reach | C．control | D．distance |
Hundreds of people leave their village to seek their _________ in cities.
| A．luck | B．chance | C．fortune | D．future |