It is known to all that every minute _____ full use of ______ the lessons will benefit students a great deal.
| A．which makes; studying | B．when made; to study |
| C．that made; to study | D．when is made; studying |
________ to overcome the difficulty，he works day and night．
| A．Determined | B．Determining |
| C．To determine | D．To be determined |
He is always _______ not to do that；but he still goes on doing it all the same．
| A．telling | B．being told | C．told | D．to tell |
At last，we found ourselves in a pleasant park ________trees providing shade(荫凉)and sat down to eat our picnic lunch．
A．forB．fromC．of D．D. with
They _______ to come to the meeting on time，but they were late again
| A．meant | B．had meant | C．means | D．have meant |
The difficulty which we had _______ with the local people has now been removed·
| A．communication | B．to communicate |
| C．communicated | D．communicating |