Jack is talking __________ his mother about his favourite food and drinks.

Bears_____ fat stores throughout the summer and fall tohave energy enough to last them through their winter sleep

There is something wrong with your bike and you’d better _______ it _______ and repair it.

______, I suppose, and the housing problems for the low-income families could be solved.

Some of us remain________at our computer for hours every day，forgetting moving our body