题目
Miss Zhao is very helpful. She often helps us ____we are in trouble.
A.
whether
B.
although
C.
whenever
D.
however
知识点：牛津上海版（2008）》九年级第一学期》Module 2 Computers vs humans》Unit 4 Computers###牛津深圳版（广州沈阳通用）》八年级上册》Module 2 Science and technology》Unit 3 Computers###章节：未标注