So far, MERS(中东呼吸综合症) has become one of ____ illnesses in the world.A. seriousB. more seriousC. the most serious
—______do you spell “soccer”? —S-O-C-C-E-R.
—What vegetables do you like? —______.
I like______ and______.
______are good friends.
—Lucy is in front of Lily and Mike is behind Lily. So we can say Lily is______ Lucy and Mike.