_________[A] By accident [B] In time [C] So far [D] Better still

The recent fire－related accidents were caused by ______.A．strong winds and lack of waterB．

It was obvious that the accident happened ______ .A．on designB．with purposeC．by designD．by

Not discouraged by the accident, she began to work______.A．as twice hardB．harder twiceC．tw

Coins, unlike other ancient artifacts, are usually found by accident______ by design.A．not

In winter, traffic accidents occur____ on the highway.A frequently B suddenly C usuall

Years after the accident he was still ________ by images of death and destruction.A