It is the best for this kind of plant to grow in is warm and rainy.A. thatB. whatC. which

问题补充：

It is the best for this kind of plant to grow in is warm and rainy.

A. that

B. what

C. which

D. where

答案：

A. that

(答案→)B. what

C. which

D. where

解析：本题考查宾语从句。本题从句中缺少主语，故用what。选B。