There are many kinds of toys and the boy can decide which ____[bye]

问题描述:

There are many kinds of toys and the boy can decide which ____[bye]

to buy
which to buy 买哪一个,这是带疑问词的不定式作宾语的
请及时采纳,不懂继续问Mrs Wng _____[try]not to worry.But she found it difficult填什么??tried为什么啊?加下行吗?和下文found 时态一致