The number of traffic accidents caused by drinking is _____ as the number of those caused by non-drinking driving.
| A．twice as many | B．many as twice | C．as twice large | D．twice as large |
The computer centre, _______ last year, is very popular among the students in this school.
| A．open | B．opening | C．having opened | D．opened |
Rather than _______ on a crowded bus, he always prefers _______ a bicycle.
| A．ride; ride | B．riding; ride | C．ride; to ride | D．to ride; riding |
_______a reply, he decided to write again.
| A．Not receiving | B．Receiving not | C．Not having received | D．Having received not |
There seemed nothing else to do but ______ a doctor.
| A．to send for | B．to call for | C．send for | D．to call in |
Hearing the _______ news, we all felt_______ .
| A．encouraging; encouraging | B．encouraged; encouraged |
| C．encouraged; encouraging | D．encouraging; encouraged |