Ifyou stand on the top of the mountain, the park looks more beautiful. 如果你站在山顶上,公园看上去更美。(不要改为立主格结构) Ifyou check your test paper carefully, some mistakes can be avoided. 如果你细检查试卷的话,有些错误是可以避免的。(不要改为 热立主格结构) 关闭If you stand on the top of the mountain，the park looks more beautiful. 如果你站在山顶上, 公园看上去更美。（不要改为独立主格结构） If you check your test paper carefully, some mistakes can be avoided. 如果你仔细检查试卷的话，有些错误是可以避免的。（不要改为 独立主格结构） 关闭