He was in great need of money, so he _____ $5, 000 for his car.
| A．paid | B．took | C．cost | D．spent |
David is such a good boy _______ all the teachers like him.
| A．that | B．who | C．as | D．whom |
______ is mentioned above that the number of the students in senior school is increasing.
| A．Which | B．As | C．That | D．It |
______ is mentioned above, the number of the students in senior school is increasing.
| A．Which | B．As | C．That | D．It |
_______ is known to everybody that the moon travels round the earth once every month.
| A．It | B．As | C．That | D．What |
_____ is known to everybody, the moon travels round the earth once every month.
| A．It | B．As | C．That | D．What |