The boy was seen to run by me yesterday为什么加to

The boy was seen to run by me yesterday为什么加to The boy was seen ______on the sports ground.play / to play /playing The boy was seen ___on the playground.A.play B.to play C.played D.to playing. The boy was seen ______(play)basketball.Is it filled with playingorto play in the blanks? the missing boy was last seen ___near the housea playingb to play为什么不能选B而选A He was seen to cross the street. The boy _______streets without pay in the old daysA was made to clean B made clean C made to clean D was made cleanThese children ______danceA were seen to B were seen for C were seen D saw to He was seen __________ something from the shopAsteal B to the boy was seen to come in the room.see 只有see sb.doing/ see sb.do 此句能用了see to do The naughty boy was seen ( )chalk in the calssroom.答案是playing with为什么不能填to be playing withto be doing表示什么？ 1.The missing boy was last seen ____ near the river.A.playing B.to be playing C.play D.to pl1.The missing boy was last seen __A__ near the river.A.playing B.to be playing C.play D.to play不是“被看见”吗?为什么不选B?8.You can’t have th (seen)to entered the room ,he was asked to the policeman.为什么不是having been seen? The thief was seen to ＿(溜)into the house. The boy was last seen being playing by the riverside with other boys 改错 He was seen to go into the room 这里为什么SEEN后加TO The boy was seen ___(hand in)his toy this morning. He was seen to have entered the room.啥意识 the young man was seen to ___(run)just now Tom ____ into the room secretiy last night.A. was seen climb B. was seen to climb C.was seen climb D. saw to be climbed要解释!