As we have known from the map of the world, this is ______.
| A．twice as large an island as that | B．twice as larger as that island |
| C．as twice as that one | D．twice as a large island as that |
They are forbidden _____, for they are still middle school students.
| A．to smoking | B．to smoke | C．smoked | D．smoke |
We have the most population in the world, most of it _____ farmers.
| A．to be | B．is | C．are | D．being |
_____ at the back of the theatre, the girl couldn’t see ZhouJielun clearly.
| A．Seating | B．Sited | C．Seated | D．Seats |
The direction_____ which the president would go was kept a secret_____ safety concern.
| A．for, over | B．from, about | C．in, for | D．at, as |
It rained heavily in the south, _____ serious flooding in several provinces.
| A．caused | B．having caused | C．causing | D．to cause. |