问题补充:
William, as well as his friends,invited to my birthday party the day before yesterday.
A. is
B. was
C. are
D. were
答案:
A. is
(答案→)B. was
C. are
D. were
解析:本题考查主谓一致和时态。当主语后跟由aswellas,with,togetherwith,alongwith等连接的词组时,其谓语动词不受这些词组的影响,与前面主语的单复数一致。再结合the day before yesterday可知用一般过去时。