问题
选择题
The father, along with his four children _______ Hangzhou. When they will be back ______ fixed. 
A．have gone to, isn’t
B．had gone to, is not
C．went to, aren’t
D．has gone to, has not been
答案
答案：D
此题考查的是主谓一致性，以及与时态相结合的综合题。单数名词做主语 + along with，together with，as well as, with 等，谓语动词仍用单数形式。另外，从句“When they will be back做主语, 谓语动词也要用单数形式, 结合从句中的时态，所以答案D正确。