1．I ____ to go the country for my summer holiday for some time.
题目
1．I ____ to go the country for my summer holiday for some time.
A.have determined B.am determined
C.am decided D.determined
2．I meant ____ you,but I was so busy.
A.to have call on B.calling on
C.to call on D.calling at
选C．为什么不选A呢?
答案
1.be determined to do是固定句式,所以排除A,D.没有be decided to do,只有decide to do,所以去掉C.
2.这个表示过去做的事情,用一般过去式就好,选C.A的意思是我过去已经给你打过电话.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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