There is no smoke without fire

无火不生烟

例句：

The story is all over the town. There's no smoke without fire.

这个传说遍及全城，真是无火不生烟。

Nine times out of ten:

十次就有九次 ×

十之八九 √

例句：

Nine times out of ten, he will succeed in the examination.

十之八九他会考及格的。

In store:

在商店里 ×

即将发生什么 √

例句：

There were also surprises in store for me.

也有一些令人吃惊的事在等着我。