The famous actor keeps fit by ____ for half an hour every morning.
| A．acting out | B．bringing out |
| C．giving out | D．working out |
Of the two sisters, Betty is_______ one, and she is also the one who loves to be quiet．
| A．a younger | B．a youngest | C．the younger | D．the youngest |
Letterboxes are much more _______ in the UK than in the US, where most people have a mailbox instead.
| A．common | B．normal | C．ordinary | D．usual |
I wish you’d do ________ talking and some more work. Thus things will become better.
| A．a bit less | B．any less | C．much more | D．a little more |
Green products are becoming more and more popular because they are environmentally _____.
| A．friendly | B．various | C．common | D．changeable |
Fitness is important in sport, but of at least_______ importance are skills.
| A．fair | B．reasonable | C．equal | D．proper |