主谓一致
1．(2013·福建卷)The famous musician，as well as his students，________to perform at the opening ceremony of the 2012 Taipei Flower Expo.
A．were invited B．was invited
C．have been invited D．has been invited
解析： 句意为：那位著名音乐家和他的学生应邀在2012年台北花博会开幕式上演出。本题既考查主谓一致又考查动词的时态。题干中的主语是The famous musician，是单数形式，排除A和C项。根据the 2012 Taipei Flower Expo可知谓语动词需用过去时态，排除D项。
答案： B
2．(2013·江苏卷)Generally，students’ inner motivation with high expectations from others________essential to their development.
A．is B．are
C．was D．were
解析： 句意为：一般来说，学生们的内在动机及来自他人的高期望对他们的发展是必要的。本题考查主谓一致。本题中由with连接两个成分，即A with B，谓语动词的单复数应该和A保持一致，所以本句谓语动词应该和students’ inner motivation保持一致，用单数。本句说的是一般情况，所以用一般现在时态。
答案： A
3．(2013·湖南卷)The university estimates that living expenses for international students
