Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years _________ it has warmed in the 20 000 years since Ice Age.
Having afternoon tea is an English ______.
My cousin went abroad at_____ age of eighteen.
If you _____ smoke, please go outside.
In the traditional Chinese calendar, each year a name of 12 kinds of animal.
-I looked after a group of fifteen French children, you know. -That easy