The mountain__with snow all year round.so it's hard to climd it AA covered B was covered C is covered D covers选什么原因

The mountain__with snow all year round.so it's hard to climd it AA covered B was covered C is covered D covers选什么原因
The mountain__with snow all year round.so it's hard to climd it A
A covered B was covered C is covered D covers
选什么原因

The mountain__with snow all year round.so it's hard to climd it AA covered B was covered C is covered D covers选什么原因
C
山终年被雪覆盖
一般现在时 用 is
被动态 用 covered
请及时采纳,多谢!

C 一般现在时的被动语态

选择C be covered with...被......覆盖 因为它是常年覆盖，不是过去时