The fact has worried many scientists the earth is becoming warmer and wormer．
A．what B．that C．though D．which
Do you still remember the rider and his new bike we saw in the street last week?
A．which B．who C．that D．whom
Tony the fact that he had made a mistake．
A．accounted B．permitted C．allowed D．acknowledged
But for her help，we the task in time．
A．will not finish B．had not finished
C．can not finish D．could not have finished
The guidance booklet can be of great help to wants to do the job．
A．whoever B．whomever C．no matter who D．who
He felt happy when his boss stated that he could some time for exercise．
A．set out B．set aside C．set off D．set up
