Why do some governments spend billions of dollars on military expansion ________ the people of these countries are still suffering from starvation and poverty

geles Times reported that researchers may have found a way to ______ human life by changing certain genes, so that humans might expect to live twice as long.

What’s that building?—the medical equipment is stored.

_may have a chance to be successful if he tries his best.

1． Jenny theUSA the day after tomorrow, because she is going to the school there.