问题
选择题
I find it astonishing that he ____ be so rude to us. I _____ make a complaint to his company.
A．could; must
B．should; shall
C．shall; should
D．dare; have to
答案
答案：B
考察情态动词。第一空should意为竟然，句意为，我发现他竟然对我们如此粗鲁。
第二空是将来时，意为，我将要向他的公司提出投诉。