When first __________ to the market, the computer software was not a success due to its complexity in operation.
| A．introducing | B．being introduced |
| C．introduced | D．to be introduced |
______ there was no conclusive evidence, most people thought he was guilty.
| A．When | B．As far as | C．As long as | D．While |
---Where___?
—I got caught in the heavy traffic, or I ___ here earlier.
| A．did you go; had arrived | B．are you; was | C．were you; would come | D．have you been ; would have been |
---Do you often stay up?
---No. I always get a good night’s sleep _______ much work I have to do.
| A．whenever | B．however | C．whatever | D．whichever |
Born and ______ in Central China’s Hubei Province, Wang Luoyong learned Peking Opera at the age of 11 in Hubei Experimental Peking Opera School.
| A．raising | B．risen | C．raised | D．being raised |
Parents ___ much importance to education. They will do their best to give their children that priceless gift.
| A．attach | B．pay | C．link | D．apply |