Question

The subjects we have at school _____biology

1. A.
   including
2. B.
   include
3. C.
   included
4. D.
   to include

Answer 1

B
此题要分清句子成分，主语是The subjects，we have at school是定语从句，整个句子缺少谓语动词，根据题中的时态应用一般现在时态所以选B。