—Doing eye exercises works well in _____
题型:选择题
问题:
—Doing eye exercises works well in _______ our eyesight. —So it does. [ ]
A. to protect
B. protected
C. protects
D. protecting
—Doing eye exercises works well in _______ our eyesight. —So it does. [ ]
A. to protect
B. protected
C. protects
D. protecting