With more forests being destroyed, huge quantities of good earth _______ each year.
| A．is washing away | B．is being washed away |
| C．are being washed away | D．are washing away |
He______ his work, otherwise, he wouldn’t be enjoying himself by the seaside.
| A．must have completed | B．should have completed |
| C．ought to complete | D．must complete |
Mark Twain _____ along the Mississippi River, which was _____ to his writing.
| A．was grown up / benefit | B．brought up / benefit |
| C．grew up / of beneficial | D．was brought up / beneficial |
___ in London, the penniless American wandered on the pavement, ___ to find a job to make a living.
| A．Lost; hoped | B．Losing; hoped | C．Lost; hoping | D．Losing; hoping |
---Are you coming to Betty’s wedding?
---I’m not sure. I ______ go to Beijing on business that day.
A. must B would C. should D. might
The children all look forward to _______ the carnival next week.
| A．take part | B．take part in | C．taking part | D．taking part in |