When Xie Lei made progress in her study abroad her parents encouraged her to .A. make it

问题补充：

When Xie Lei made progress in her study abroad, her parents encouraged her to .

A. make it up

B. keep it up

C. build it up

D. lift it up

答案：

A. make it up

(答案→)B. keep it up

C. build it up

D. lift it up

解析：考察动词短语辨析。Make up化妆，编造，弥补，组成；keep up保持，坚持；build up建设，建立；lift up举起。句意：当谢磊在国外的学习中取得进步的时候，她的父母亲鼓励他坚持下去。根据句意说明B项正确。