175. They instructed me in the best ways of doing the job. The underlined part means _______.
We haven’t settled the problem of_______it is necessary for him to study abroad.
In peace, too, the Red Cross is expected to send help to__________there is human suffering.
If you feel tired and sick of fat food, that is ______ you have to go to the hospital for medical examination.
It is ____ fashion differs from country to country ____ may reflect the cultural differences.
——What made him so upset? ——______she failed in her examination