As I will be away for at least a year, I’d appreciate _____ from you now and then so that I can know how everyone is getting along.
Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
With many cities in China dreadfully blanketed by thick haze, the environmental problem is _____ Chinese people concern most nowadays.
According to scientists, our mental abilities begin to _____ from the age of 27 after reaching the highest level at 22.
Smiles around the world _____ be false, _______ other feelings like anger, fear or worry.
The doctor tried to laugh my brother _____ his fears about the coming operation.