22. One learns a language by making mistakes and ______ them.
It is proposed that another meeting _______ to discuss how to give more support to the underdeveloped area.
_________ I picked up the receiver, I realized that someone had dialed the wrong number.
Snow is rare in this area. You can hardly see any snow, ________ it is winter.
The prices have been rising all the time, especially that of housing. So it is high time the government _______ action to solve it.
— So much work needs to be finished in such a short time. — _________ I’ll give you a hand.