Tính

-5 - \(\dfrac{1}{6}\)

\(\dfrac{-3}{7}\): 9

1. We must ...........our homework before going to class
A.to do        B.do           C.doing             D.did
2.Our teacher never gets angry with us. He is very.......
A.boring         B.sporty            C.creative           D.patient
3.Lan often...........her bike ti visit his hometown
A.drives        B.flies             C.rides         D.goes