. Though having a big market share, most electronic devices of this kind/type/sort ________ found poor in quality.
E) has F) have G) / H) is being
Good use___ the natural resources to improve people’s life in this area.
A great number of students said they were forced to practice the piano .
—When shall we restart our business ? —Not until we our plan .
When changing lanes , a driver should use his turning signal to let other drivers know .
you may have , you should gather your courage to face the challenge .