---Don't skate on the lake!
---Why not? Isn't it thick enough___________?
| A．to skate | B．skating on | C．skating | D．to skate on |
My sister ____two hours doing her homework every day.
A. takes B. spends C. costs
It’s ___cold outside. Put on more clothes when you go out.
A. a bit B. a bit of C. a few
George is ____ honest man and he plays ____football very well.
A. a, the B. an, / C. an, the
A. trouble B. proud C. Loud
A. job B. sock C. above