1 . Please do not __________ (犹豫；迟疑) to contact me if you have any questions. (根据汉语提示单词拼写)

2 . Do not r______ on him. He is just a talker rather than doer. (根据首字母单词拼写)

3 . Don’t agree, but don’t ___________(争辩) either. (根据汉语提示单词拼写)

4 . Don’t ________ (怀疑) him, for he is very reliable. (根据汉语提示单词拼写)

5 . Don’t ________(向……挑战) the winter chill by wear just a T-shirt. (根据汉语提示单词拼写)

6 . Don’t h_____to talk to your teachers or parents if you have difficulties. (根据首字母单词拼写)

7 . The speed limit is 40 miles an hour. Don’t e_______ (超出) this maximum. （根据中英文提示拼写单词）

8 . As a saying goes, “don’t j___________ a book by its colour.”（根据首字母单词拼写）

9 . Don’t ______ (作弊) in the exam. (根据汉语提示单词拼写)

10 . In the event of difficulties, please do not h__________(犹豫) to contact our Customer Service Department. (根据中英文提示填空)