赞题库-背景图
单项选择题

The urban ambient quality in some cities was improved ______a certain extent.

[A] by
[B] with
[C] to
[D] of
<上一题 目录 下一题>
热门试题

单项选择题She ______to Buddhism when she was a little girl.

[A] transformed
[B] converted
[C] turned
[D] changed

单项选择题I ______but for the help you gave me.

[A] didn't succeed
[B] wouldn't succeed
[C] hadn't succeed
[D] wouldn't have succeeded