Question

1.we .... you should tell her truth

A.was thinking B.are thinking C.have thought D.think

2.Nicky ... to San-Francisco when the accident happened

A.know B.knew C.knows D.have known

3.We ... some friends for dinner tonight.Would you like to join us?

A.saw B.are seeing C. have seen D.see

Answer 1

1.D;
2.Ошибка в постановке вопроса, но интуитивно D или Have gone/had been gone/was going но никак не глагол Know - здесь он не уместен!
3.С.