What did George and Harris offer to pack and why?

How did George and Harris react to this? Did Jerome like their reaction?

While packing the hamper, George and Harris do a number of foolish and funny things. Tick the statements that are true. (i) They started with breaking a cup. (ii) They also broke a plate. (iii) They squashed a tomato. (iv) They trod on the butter. (v) They stepped on a banana. (vi) They put things behind them, and couldn’t find them. (vii) They stepped on things. (viii) They packed the pictures at the bottom and put heavy things on top. (ix) They upset almost everything. (x) They were very good at packing

What did Harris say after the bag was shut and strapped? Why do you think he waited till then to ask?

Why did Jerome have to reopen the packed bag?