It is only ___our power to carry out ( 执行) the rules, rather than make them.
A. within B. on C without D. off
There is no doubt our educational system leaves something to be desired．
| A．what | B．whether | C．if | D．that |
Before writing your answer, please give careful __ to the question．
| A．consideration | B．translation | C．examination | D．expression |
Helping others is a habit,you can learn even at an early age
| A．it | B．which | C．what | D．that |
—How much do I owe you for lunch?
—.It ' s nothing．
| A．You're welcome | B．Not at all | C．Forget it | D．That's right |
Correct the errors in the following sentences, if.
| A．not | B．necessary | C．any | D．ever |