.By the time the tornado ended, more than 700 people _________.
| A．have killed | B．had been killed | C．were killed | D．had killed |
Don't worry if you don't understand everything, the teacher willthe main points at the end.
| A． | recover | B． | review | C． | require | D． | remember |
It is obvious to the studentsthey should get well prepared for their future.
| A． | as | B． | which | C． | whether | D． | that |
---- Sorry, I have to ______ now. It’s time for class.
---- OK, I’ll call back later.
| A．hang up | B．break up | C．give up | D．hold up |
A persone-mail account is full won't be able to send or receive any e-mails.
| A． | who | B． | whom | C． | whose | D． | whoever |
______ the project in time, the staff were working at weekends.
| A．Competing | B．Having completed | C．To have completed | D．To complete |