预防局麻药中毒的必要原则中，下列哪些正确（）

A.避免局麻药直接注入血管内

B.注意局麻药的用药总量

C.注意局麻药推注速度

D.注意局麻药的浓度

E.注射局麻药前给镇静剂

用括号中所给词的正确形式填空。

小题1:I couldn’t fall ______ (sleep) because of the big noise.

小题2:He has much ______ (know) of English grammar and vocabulary though he began to learn English only two years ago.

小题3:The main character of this ______ (wonder) game is Itchy Feet. 

小题4:The boy was so ______ (care) that he made so many mistakes in his paper.

小题5:There are over 20______ (perform) in the fashion show.

小题6:The ______ (nine) question is the most difficult one of all.

小题7:Nancy with her parents ______ (travel) to many places of interest in the past three years.

小题8:Japanese ______ (teach) in our school last term.