21.unless it rains, I will go go for a picnic
22.some new equipment have be ordered by the company
23.in spite of the bad weather, we had a picnic
24.the bills have to be paid before ...by him
25 you didn't remember posting the letter
26.mrs.Green told her son that he should be careful when ...
27.the tea was so hot that she didn't drink
28.apples are usually cheaper than oranges
29 .it was such a hard cake that i couldn't eat
vote 5☆ cho mik vs nhá ❤ thanks