—Have you seen my e-mail about our TESL project?—Yes. Luckily I checked my e-mails yesterday. Normally I my e-mail box for days.
Last Sunday, I went shopping for the perfect dress, ______ would make me look younger.
In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets.
They will fly to Washington,they plan to stay for two or three days.
10. We went through a period _____ communications were very difficult in the rural areas.
13. For many cities in the world, there is no room to spread out further, _______ New York is an example.14.