you enjoy in the river?A. Are swimmingB. Do swimmingC. Are to swimD. Do to swim

问题补充：

you enjoy in the river?

A. Are, swimming

B. Do, swimming

C. Are, to swim

D. Do, to swim

答案：

A. Are, swimming

(答案→)B. Do, swimming

C. Are, to swim

D. Do, to swim

解析：本题为一般疑问句，enjoy为一般动词，用主动词do构成一般疑问句，enjoy后常跟动名词作宾语，故选B。