1.你能帮孩子们游泳吗?Can you help kids ______ ______?2.请来加入我们的行列.Please come and ___ __
问题描述：
1.你能帮孩子们游泳吗?Can you help kids ______ ______?2.请来加入我们的行列.Please come and ___ __
答
with swimming
join us为什么是swimming？而不是swim？with是介词，介词后面的动词就变成了动词ing形式。help somebody with something/doing sth