He was walking along the river ________ he saw a little dog struggling in the water.A. while B. when C. as D. which选A 说明理由

he was singing ()(和……同时)he was walking along the bank of the river he was walking along the corridor when he got school 那里错了 __________ yesterday afternoon ,a small tone flew out of a window,and knockde him unconsciousA.As walking along the roadB.Walking along the roadC.When he was walking along the road D.To walk along the road是不是选C He heard someone ( ) help when he was walking along the river.中()中填call还是calling? A man was walking along the street when he saw a woman moving a large box全文内容 One day a man was walking along the beach.He found many starfishes washed up onto the beach全文内容 A man was walking along the street when he saw a woman moving a large box .It was half in and half He was walking along the river ________ he saw a little dog struggling in the water.A. while B. when C. as D. which选A 说明理由 短文改错：one day ,a young man was walking along a path when he heard someone crying,one day ,a young man was walking along a path when he heard someone crying,help,help.He quickly ran to see what was happend.请说明错误并解释 完形填空A rich man was walking along the road one day.He saw an old man____ a tree in the gardenHe asked 29.Jim was walking along the river_______ he heard someone_______ Help!Help!A.when; shout B.while; shouting C.as; to shout D.when; shouting he was walking (slow)的正确形式 He was walking.He was slow.(合并句子) When he was d____ along zhe street One day a small boy was walking along the street in London. His name was Tom Mark was walking home from school one day 完形填空Mark was walking home from school one day when he noticed a boy ahead of him.He had tripped and dropped all of the books he was carrying,along with some clothes,a baseball bat and a glove.Mark s__ The girl was walking along the park when it began to rain就划线处提问 画线的是walking along the par The girl was walking along the park when it began to rain就划线处提问画线的是walking along the park