C
如果选A,可以改为 they could set off
因为主句的动词是过去式wondered ,从句时态要与之保持一致.
选择题 All of them wondered when-------- A. they can set off B.
3个回答
相关问题
-
i wonder A:what do they call them.B:how they call them.C:wha
-
i wonder A:what do they call them.B:how they call them.C:wha
-
______are Young Pioneers.A.They all B.All them C.All they D.
-
they all和all of them的区别
-
all of them和all they的区别
-
是all of them are 还是 all of they are
-
They were all very tired,but ________of them took a test. A．
-
just want to know ------ I should set off right now.A.when B
-
I __that they must have set off A frighten B afrid C surpris
-
better yet,they can even afford to "slack off" a bit when th