77. --- Have all the important letters been delivered at the first time? --- I’m sorry. _______ only 40% of them.
The local government has been accused of not responding _________ to the needs of the homeless in the flood-stricken area.
Despite the fact that all three teams ________ different approaches to the problem, they were all immediate successes.
This machine is very easy ______. Anyone can learn to use it in a few minutes.
Every minute must be made full use _______ in class.
While these activities might cause laughter ______ respect, in reality they require an enormous amount of strength.