This is a difficult and stressful job, but one ______ you can really help people

The famous singer ______ where he wasborn and in 1930 he came to Beijing.

It is believed that many more popular terms________ on the Internet this year

ccording to the regulation, you canonly borrow a_______of ten books from the library.

Millie, here is _____ bridge. What can you see across _____bridge—Oh, _____elephant is standing over there.