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华北水利水电大学-电气工程及其自动化-大学英语（3）（在线作业1）
Some kinds of birds which were once a(n)______ sight are now becoming rare.
A)
cheery
B)
common
C)
often
D)
ordinary
When I ask you a question, I expect a ____ answer. A) punctual B) fast C) rapid D) prompt
Everybody on board was worried and we were eager and ____ to find out what had happened. A) precious B) curious C) delicious D) ambitious
When I ask you a question, I expect a ____ answer. A) punctual B) fast C) rapid D) prompt
Everybody on board was worried and we were eager and ____ to find out what had happened. A) precious B) curious C) delicious D) ambitious