选哪个,请给出原因.A.Planting B.Planted C.To plant D.To be planted

选哪个,请给出原因.A.Planting B.Planted C.To plant D.To be planted 选哪个,请给出原因.A.having involved B.to be involved C.involving D.i 选哪个,请给出原因.A.Thinking B.To be viewed C.Viewed D.Considering 选哪个,请给出原因.A.being killed B.to be killed C.killing D.to have 选哪个?请给出原因.A.being fined B.to fine C.to be fined D.having bee Where shall we __ __trees? A.plant B.to plant C.planting D.p 选哪个,请给出原因.A.to realize B.realized C.have realized D.realizin 选哪个,请给出原因.A.to travel B.travelled C.travel D.travelling 选哪个,请给出原因.A.speak B.speaking C.spoken D.to speak 选哪个,请给出原因.A.giving B.to give C.give D.given 选哪个,请给出原因.A.searching B.to search C.searched D.search There are lots of trees-----A to plant Bto be planted 理由?