I.Change these sentences into reported speech
1." Who thinks there is life in Mars? ", my mother asked
➜My mother asked..............................
2." I think aliens have very big heads and triangle faces ", Sally said
➜Sally thought......................................
3." The Martians may travel in flying saucers ", Tom answered Jerry
➜Tom thought....................................
4." I believe scientists have found ways to travel to the Moon ", Tom said
➜Tom believed.....................................
II.Choose the correct answer for each sentence
1.It_______that the thinning of the ozone layer_________by smoke from mills,factories and industry
A.believes/causes
B.is believed/causes
C.believes/is caused
D.is believed/is caused
2.All flights to Ha Noi had to be cancelled__________the storm
A.as a result
B.due to
C.because
D.so
3.The first Thanksgiving_________by the Pilgrims in 1621
A.celebrated
B.was celebrated
C.is celebrated
D.has been celebrated
4.There_______be life in other planets,but I can't be sure
A.should
B.might
C.will
D.must
5.John asked_______I wanted to leave on the Moon
A.what
B.how
C.whether
D.who
6.Can you tell me__________?
A.how many planets orbiting the Sun
B.how many planets orbit the Sun
C.do how many planets orbit the Sun
D.how many planets do orbit the Sun