企源知识库

Positions as teaching assistants ___________ good writing and speaking skills.
A、stand for
B、call for
C、account for
D、act for
【正确答案】：B
【题目解析】：句意：教学助理职位要求有良好的写作和口语能力。call for要求；需要；提倡；邀请；为…叫喊