Nearly all the streets are in ________lines, running from east to west. Those that run from north to south are called avenues.
We went to Mountain Tai last weekend, ________, not surprisingly, was crowded with visitors.
The town _______ we visited last month is the one _______ the famous painter was born.
The opening ceremony is to be held in the lecture hall this afternoon, _____ can seat 400 people.
It is reported that no problems have been discovered in milk products such as Yili, Sanlu and Mengniu, ________ proves newly-produced liquid milk safe.
Was __ at the air battle on June 8,1994, ____ was led by Captain Johnson ___ Peter lost his life?