—Have you thought of the topic for the composition? — Not yet．I _____ it very carefully, but I haven’t decided.

—Would you have come to his help, had you been free? —Yes. But I______ engaged. 

The skirt is too big for me. I wish I _______ it last Sunday. 

A rooster in Liaocheng, Shandong province, weighing 3 kilograms, ________ 14 eggs so far. The eggs are bigger than normal eggs.

Walmart, which is one of the largest American supermarket chains,         some of its store open 24 hours on Mondays through Saturdays.