She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
Since the Amish value seeing each other face to face, they ____ having telephones in their houses.
We must be aware of the potential causes of traffic accidents and act to prevent them—this is true ____ everyone.
Putin said Russia ________ the right to take all measures in Ukraine to protect Russian people there who were living in “terror”.
After the earthquake, many people in Nepal have to be _____ in the tents because most of their houses are badly damaged.
With the rapid development of medical science, we ______ more new drugs used in the treatment of cancer.