A new planet has been discovered recently. It’s ______ Earth，and hopefully it can support human life.
| A．almost three times the size of | B．three times the size than |
| C．three times almost as large as | D．almost three times as larger as |
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 |