4.These problems are very ,because I don’t know what to do.

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4.These problems are very ,because I don’t know what to do.　　A) worry B) worrisome C) worril
完整的题目是
4.These problems are very ,because I don’t know what to do.　　A) worry B) worrisome C) worriless D) worried 　　5.The house in which passed was the smallest in that large city.　　A) imaginary B) imagined 　　C) imaginative D) imaginable 　　6.At the top of the hill we were able to see the full of the city.　　A) expand B) extent C) expense D) extend

首先,你的原题中没有给出填空的位置,现更正如下：
These problems are very ___ ,because I don’t know what to do.
The house in which passed was ___ the smallest in that large city.
At the top of the hill we were able to see the full___ of the city.
4.B) worrisome 使人发愁的
句意:这些问题使人发愁,因为我不知道怎么办.
5.B) imagined
was imagined 被动语态,“被想象成”
句意:这个句子结构有点奇怪,( in which passed )讲不通.
6.B) extent
the full extent of ..."...的全景/全貌"
句意:在山顶上,我们能够看到城市的全貌.

4.These problems are very ,because I don’t know what to do. tell me what to do because I don't know when I wish do这是一首歌高 I don't know what to do I want to cry!I don't know what can i do!I'm very sad! I don't know what to do,it's because you,so 英语~一句话的理解I'm very upset and don't know what to do.________wh 把单词拼成句子,I’M don’t and to upset do what know very i am very upset and don't know what to do 这句话中的 what to do 能 what to do在i‘m very upset and don't know what to do中做什么成分、【 i'm very upset and don't know what to I understand,but,I don't know what to do? i don't know to do what 对吗