英语选择两道
Thanks __ your timely help, we could finish the work ___such a rainy day.
A. for ; inB. to; on C. to in D.for on
I really don't know____with this kind of problems.
-you can ask teacher for help.
A. waht to do B.how to do C.waht to deal D.which to deal
还有问题就是：how to do 和 what to do 怎么区分.
还有什么日子前用ON 什么日子前用 IN ?