帮我做做下面几道题 第三次

1All that can be done ____done.
A. has B. have C. has been D. have been

2 Mary's teacher and friend ____ a woman singer.
A. is B. are C. be D. has
3John as well as his parents ____ fond of music.
A. are B. is C. has D. have
4 The headmaster as well as all the teachers ____ very kind to us.
A. is B. are C. look D. seem
5 Plastics ____ many other materials.
A. has taken place of B. has taken the place of
C. have taken place of D. have taken the place of
顺便说一下做题的思路 谢谢

大家帮我做做下面的题目好吗？ 叔叔阿姨帮我做做下面两道作业吧 请大家帮我做做下面的题 好心大哥帮我做做下面几题！！！ 谢谢那位高手，帮我做做下面的题。。 谁帮我做做下面的题 要分析！ 帮我做做几道题,非常感谢 帮我做做数学 ,再帮我做做........ 帮我做做数学题