— Why are you so upset? What has happened? — You know, I’ve come to the point ______ I can’t stand her arguing any longer.
--- It’s the fourth time that heavy smog(雾霾) has hit the city this month. --- It’s high time we _______ measures to fight air pollution.
Science has given clear evidence ______ smoking can lead to many diseases.
We admire this family, ______ the parents treat their child like a friend.
The weather in Inner Mongolia is always dry, but sometimes it _____ rain heavily.
No pleasure can equal ______ of having a good sleep after hard work.