We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
Although the old man was ______ death, he still fought with the disease bravely.
Many countries are increasing their use of natural gas, wind and other forms of ______.
It may not be a great suggestion. But before ______ is put forward, we will make do with it..
Try not to cough more than you can ______ since it may cause problems to your lungs.
He was unhappy when he sold his guitar. After all, he ______ it for a long time..