1.The FLIGHT leaves for France at one o 'clock.
2.I have been there many times in the PAST .
3.Im afraid I cant help you at PRESENT .
4.If you miss the TRAIN,there is another one hour later.
5.If there is no electricity,the t cannot move.
6.The PLANE is going to land
7.Lamborghini are popular in Beijing.
8.There has been no PORSCHE RACING—CAR in our city.
9.I have studied English SINCE tow years ago.
10.Do you want to CHANGE your answer?