1 . He is a ________(谨慎的) person, so whatever he does, he is not only discreet (慎重的) but careful as well. (根据汉语提示单词拼写)

2 . Although his friends encouraged him to publish it, Copernicus was________(小心). (根据汉语提示单词拼写)

3 . The boss is c__________ about making promises and once he did, he will keep it.

4 . I’m __________(谨慎) about what I say because careless remarks will hurt one’s feelings.

5 . My father is a   c_______   motorist; he never does any dangerous driving.

6 . The scientists are c_________ about using the new medical treatment on humans.

7 . My father is a c___________ (谨慎的) driver and he always obeys the traffic rules.

8 . The policy of being too c______(谨慎的) is the greatest risk of all. (根据中英文提示填空)

9 . You should be________ (谨慎) about what you say in public.

10 . I’ve always been ______(谨慎的) about giving my address to strangers.