______ send officials abroad for training, I think it is better for the government to directly admit people who have studied and worked overseas.
94. I can hardly hear the radio. Would you please ____ ?
92. The international police has come into existence and they were ____ the key to global security.
91. She likes to keep things rather than throw them ____ .
90. ____ the work was very difficult, they managed to finish it in time.
89. The task is hard, ____, the workers managed to finish it in time.