Jane warns us that our group is going to be very tired and dirty by the afternoon and she is right. However, the evening makes it all ______.
| A．favorable | B．worthwhile | C．precious | D．essential |
Every year a flood of farmers arrive in Shenzhen for the money-making jobs they before leaving their hometowns.
| A．promised | B．were promised | C．have promised | D．have been promised |
More and more high-rise buildings have been built in big cities space.
| A．in search of | B．in place of | C．for lack of | D．for fear of |
The girl had hardly rung the bellthe door was opened suddenly, and her friend rushed out to greet her.
| A． | before | B． | until | C． | as | D． | since |
Lots of rescue workers were working around the clock, supplies to Yushu, Qinghai Province after the earthquacke.
| A．sending | B．to send | C．having sent | D．to have sent |
Stephen Hawking believes that earth is unlikely to be the only planet life has developed gradually.
| A．that | B．where | C．which | D．whose |