The 20th Cup Opening Ceremony was held in Brazil _____ June 12th, 2014.A. in B. at C. on
Helen draws better than ___ boy in her class.
Of all the streets in Beijing, Wangfujing is ___.
“Autumn”is also called_________ in American English.
The boy doesn’t know the answer _________ the teacher’s question.
Children shouldn’t watch ________ TV.