1.-Tom,did Mr'Lee join you in your celebration of the Lantern Festival?
-No,he ___C.was going to join ____ ,but he happened to have fallen ill.
was going to：本打算,却未完成
2.Churchmen often led the way in establishing contact between whites and Indian ____C.what ___ became the United States.
3.He was allowed to go swimming ____C.on condition ___ he kept near the other boys.
C.on condition ：表条件,只要
其他：
A.in spite 尽管
B.in order that 为了
D.so that所以
都不合句意