Question

英语好的帮我做几道选择题吧~~

My father set out{}for Africa two days ago
A.for his travel B.for his travels
WHY chose B?

He works{}his father used to
A.in the factory B.in which C.in that Dwhere
为什么选D不选B

Answer 1

1 可能是因为去非洲是一系列的旅程，而非单去一个国家，（一般好不容易去非洲都得多逛几块地儿的），当作“一系列的旅程”解时，用travels

2 选B的话缺先行词。定语从句一定要有先行词。
整句话应该是He works in the factory which his father used to.而where=in the place that/which，所以这句话又可以是He works where his father used to.

Answer 2

1。set out for spl.动身去某地，
2。 He works{where}his father used to
where his father used to (work）引导地点状语从句。
He works{in the factry where}his father used to
He works{in the factry in which}his father used to
in which 不能引导地点状语从句，只有改为上句的答案才可以引导定语从句。

Answer 3

第一句是固定用法,不必多言
第二句只能用where 因为如果你选B的话,IN在这里作什么成分呢?

Answer 4

travels 旅程
used to sth so choose where means in which

Answer 5

第一句是固定用法,