—Hi, Nancy ,I didn’t know you had come back. So have you graduated from college? —Yes .I Biology for four years in Nanjing.
Wang Jing is sitting __ my right.
Little Jim sat under the tree, ___ about that maths problem.
More than 70 percent of the playground in our school __ covered by water now.
Shanghai is __ the east of Nanjing.
The Great Wall took _ a new look after the People\s Republic of China was founded.