Creating better health care, education and housing for everyone is a simple idea, but ____ which is hard to put into practice．
| A．one | B．that | C．the one | D．the other |
—There is still a copy of the book in the library.Will you go and borrow_____?
—No，I’d rather buy_____in the bookstore.
| A．it；one | B．one；one | C．one；it | D．it；it |
It is often________that human beings are naturally equipped to speak.
| A．said | B．to say | C．saying | D．being said |
，please start the work tomorrow.
| A．If you are convenient | B．If it is convenient for you |
| C．If it is convenient of you | D．If convenience |
----Will you go to the party?
----Of course I will.
| A．if invited | B．if having invited | C．if I was invited | D．if I will be invited |
Generally speaking_______acording to the
instructions，the drug has no side effect.
| A．when taking | B．when taken | C．when to take | D．when to be taken |