1.Tom _______ study hard although he was staring at his math

1.Tom _______ study hard although he was staring at his maths book.
A.promised to B.pretended to C.protected to D.prevented to
2.The cottage _______ door faces south caught fire last night.
A.which B.of which C.whose D.that
3.They need pa_______ for their car.
4.When you drive at night,you have to turn on the he_____.
5.The van needs ga_____.The gauge is on "E".
6.Our SUV won't st_____.We need a tow truck.
7.I bought a us_____ desktop computer last Sunday.It only cost me ￥500.