Very few experts have ____ with complete new answers to the world s economic problems.
| A．come down | B．come around | C．come up | D．come to |
Such a custom came into _______ long ago.
| A．being | B．use | C．service | D．existence |
His parents wouldn’t let him marry anyone ______ family was poor.
| A．of whom | B．whom | C．of whose | D．whose |
He attends the evening class ____, that is, Monday, Wednesday and Friday.
| A．every two days | B．every the second day |
| C．every two day | D．every other day |
Many tall buildings _______ in Shanghai in the past few years.
| A．has been built | B．have built | C．were built | D．have been built |
We were running out of gas. I went off ____ a service station where I could buy some gas.
| A．in danger of | B．in need of | C．in search of | D．in return for |