In the past half-century, average incomes _______ quickly in developed countries, yet happiness levels have remained almost the same.
A.have risen | B.had risen | C.rose | D.rise |
_____ is known to us all is that America is a developed country _____ the First World.
A.Which; belonged to | B.As; belonged to |
C.What; belonging to | D.It, belonging to |
The mountain-climbing ___ every one of us.
A.has been tried | B.has tired | C.is tired | D.tired |
I do think my house wants ____.
A.to be painted | B.to paint | C.to be painting | D.to have painted |
The school required ____.
A.rebuilding | B.to be re uilt | C.to have rebuilt | D.rebuilt |
You don’t need ____ so early.
A.leave | B.left | C.to leave | D.leaving |