Ten minutes had been made full ____ of ____ the problem.
| A．using; studying | B．use; to study |
| C．to use; to study | D．use; studying |
.It’s about a time _____ there were black slaves in North America.
| A．where | B．when | C．how | D．that |
.Their leaders often come to see what difficulty the workers have ____ the plan .
| A．to carry out | B．carrying out | C．carri ed out |
D．with carrying out |
Big efforts have been made to __________ government expenses to a desirable level.
| A．cut down | B．cut up | C．cut in | D．cut off |
A sudden hurricane occurred in Tokyo last night ,____ great inconvenience in transport .
| A．caused | B．causing | C．affecting | D．brought |
—Come on ,please give me some suggestions on the project.
----Sorry .With so much work ____ my mind .I almost break down .
| A．filled | B．filling | C．to fill | D．being filled |