Both Class 3 and our class won't be able to finish the work unless they ___ each other.
. In my view, the best friend is one with whom ______ your sorrow and joy.
Our city has developed into a big city, which is ______ it used to be.
Whatever he promises, you can’t ______ anything.
We offered them a lot of valuable information about farming ______ their help with our industry.
It is known to all that a proper amount of exercise ______ to good health.