You ____ things about. Look, what a mess in your room!
27.How long do you think it will be________China becomes a rich and harmonious country?
26. If Tom’s wife doesn’t go to the party, _________.
25. You can put the medicine____you like, on condition that the children can’t reach it.
24. There were two boys in the lab,__________did the experiment successfully.
23. The customer didn’t choose______of the coats and went away without looking at a third one.