this的複數

例句：

e injuries were avoidable.

這些傷病本是可以避免的。

e questions frustrated me.

這些問題使我懊喪。

e shoes buckle at the side.

這雙鞋從旁邊上扣。

e houses are soundly built.

這些房子蓋得結實。

e peaches are still firm.

這些桃子還很硬。

e shoes are much too tight.

這雙鞋太緊了。

do these two pieces join?

這兩件東西怎樣接合呢？