问题
选择题
The E-mail Jack had looked forward to ______ last night at last and he was very happy.
A．arrived
B．arriving
C．had arrived
D．arrived
答案
答案：A
考察句型结构，look forward to 的宾语是E-mail,主句是The E-mail arrived last night at last. 因为有last night 所以主句谓语动词用一般过去时。