—Little Tom is used to getting up ______eight every morning.A. at B. on C. in D.

—Little Tom is used to getting up ______eight every morning.A. at B. on C. in D.

查看答案

—Listen! Who ______ in the next room? The voice is so beautiful.A. sings B. sang

—Listen! Who ______ in the next room? The voice is so beautiful.A. sings B. sang

查看答案

—The firemen tried their best to ______ the fire but in vain.A. put up B. put fo

—The firemen tried their best to ______ the fire but in vain.A. put up B. put fo

查看答案

—The construction of the new bridge has been ____ for two weeks because of th...

—The construction of the new bridge has been ____ for two weeks because of th...

查看答案

只要做好设备的保护接地或保护接零,就可以杜绝触电事故的发生。A.正确B.错误

只要做好设备的保护接地或保护接零,就可以杜绝触电事故的发生。A.正确B.错误

查看答案