.
With more forests being destroyed, huge quantities of good earth___________ each year.
| A．is washing away | B．are being washed away |
| C．are washing away | D．is being washed away |
When such an organized group became too large for its members to travel together comfortably, it would__________.
| A．hurry up | B．split up | C．make up | D．pick up |
______ is no _______ arguing with Bill because he will never change his mind.
| A．It, use | B．It, help | C．There, time | D．There, way |
---What caused the party to be put off?
---_____________ the invitations.
| A．Tom delayed sending | B．Tom’s delaying sending |
| C．Tom delaying to send | D．Tom delayed to send |
We can’t walk there. _________, we must find a taxi.
| A．Though | B．Anyway | C．Otherwise | D．However |
I feel so excited! At this time tomorrow, I ________ by camel with local guides in Northern Africa.
| A．travel | B．travelled | C．will be travelling | D．have travelled |