问题
选择题
A survey suggests that the royal wedding of Prince William and Kate Middleton _____ a great boost for British economy because a large number of visitors are expected to go.
A．will be
B．has been
C．was
D．be
答案
答案：A
本题考查时态。根据宾语从句中because a large number of visitors are expected to go从句用一般现在时，故主句用将来时态。选A。