Even if the treatment ________, there is still no magic pill for patients in the late stages of AIDs.
While he was at college,he took part in political activities,and was thrown into prison.
Great changes have taken place in China since the People’s Republic of China in 1949.
At night we can see stars in the universe.
The Olympic Games,in 776 B.C.,did not include women players until 1912. A.first playing B.to be first played C.first played D.to be first playing
If the weather had been better,we could have had a picnic.But it all day.