_______twice, he didn't want to try again.
With his attention________on the shops along the roadside,he knocked an old man down while riding to school.A concentrating B.concentrated C.to concentrate D.concentrates答案 B解析 考查词组,故选B项。
It was raining heavily.Little Mary felt cold,so she stood________to her mother.
Last night I watched Milan A.C.________football on TV.A.were playing B.to play C.played D.play
Many journalists were sent to________the terrible disaster immediately the earthquake broke out in Sichuan Province on May 12th,2008.
A lot of searching and rescuing dogs are needed to________the soldiers________searching for people buried and trapped in the ruins.