问题补充:
At first, we didn know about Tom. But , we came to know that he was an honest boy.
A. suddenly
B. luckily
C. gradually
D. slightly
答案:
A. suddenly
B. luckily
(答案→)C. gradually
D. slightly
解析:句意:起初,我们不了解汤姆,但是逐渐地我们慢慢地知道他是一个诚实的人。Suddenly突然;luckily幸运地;gradually逐渐地;slightly稍微地。根据句意故选C。