How can you expect to get ahead in your life ______ you even live to yourself from time to time?
| A．though | B．until | C．before | D．when |
Linda worked for the Minnesota Manufacturing and Mining Company,__________ as 3M.
| A．knowing |
| B．known |
| C．being known |
| D．to be known |
After many experiments, finally we __________ the material we wanted very much.
| A．success to get |
| B．success in getting |
| C．succeeded to get |
| D．succeeded in getting |
The water __________ the sand soon disappeared.
| A．that added |
| B．adding to |
| C．added to |
| D．added in |
Mobile phones __________ in China are well worth trusting for many reasons.
| A．produce |
| B．producing |
| C．have been produced |
| D．produced |
In the last few years thousands of films __________ all over the world.
| A．have produced |
| B．have been produced |
| C．are producing |
| D．are being produced |