1. (2021九下·海门月考) 请根据句意从方框中选择合适的单词，并用其适当形式填空，使句子通顺。

true   fifty  I  easy   visit

1. （1） — Could I use your car this Sunday? is broken.

   —No problem. Here's the key.

3. （2） Modern technology has made our lives much , but it also brings us some troubles.
5. （3） I can't believe he is already in his , he looks so young.
7. （4） They won't welcome like you if you behave so impolitely.
9. （5） —I'm sorry that I took your umbrella by mistake.

   —It doesn't matter.