"All" in this context is uncountable. All the milk is / are gone! All the chairs have been brought inside.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
exodejavu All that can be done____.all that can be done is considered one thing, not more. It has to have a singular verb.
A. has been done
B. have been done
The key answer is A.
What's wrong with B?