— We’ll visit the Summer Palace_______ there is a heavy rain tomorrow.— OK! Boating on the lake must be great fun.

－Linda was just going out shopping________the telephone rang.

 ---There is no doubt _______ he will come tomorrow.---But I doubt _______ he will come here on time.

I don’t like swimming, ______ I won’t join the swimming club.

we’ll go to the Great Wall___ there is heavy rain tomorrow.  OK! Walking on the Great Wall must be great fun.