很高兴能够在这里回答你的问题：
1孩子们计划明天乘出租车到博物馆.
The children plan to (take the taxi) to the museum tomorrow.
2.我们常常骑自行车到农村去.
We often (ride the bike)to the countryside.
3.我叔叔下周要动身去上海.
My uncle is (leaving for) Shanghai next week.
4.他们要乘早班火车去天津.
They are talking (the early train)to Tianjin.
5.他花了半个小时才走到书店.
It took him half an hour (to walk to) the bookstore