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wears to wear wearing to wear
sufficient oxygen to sustain human life an explosive mixture in the compartment a toxic atmosphere in the compartment All of the above
turned to turned off turned away turned up
wears to wear wearing to wearing
approve of students wearing approve students to wear approve students wearing approve of students to wear
wears;wearing puts on;dressing dresses;in in;wearing
approve of students’ wearing approve students to wear approve students’ wearing approve of students to wear
approve of students wearing approve students to wear approve students wearing approve of students to wear
turned against turned off turned away turned up
a; the; the a; /; a /; /; a a; the; a