____ you ask many different questions will you acquire all the information you need to know．
A．If only B．As far as C．So long as D．Only if
________， the car stopped all at once.
A．Seeing a boy lying on the ground
B．On seeing a boy sitting on the road
C．The driver saw a boy standing on the road
D．The minute the driver saw a boy seated on the road
Due to the widespread ________ of this medical technology, more diseases can be discovered and treated at an early stage.
A．approval B．application C．appointment D．appreciation
If you want to ______ your goals and dreams, you have to be willing to pay the price.
A．accomplish B．attach C．advocate D．attempt
We don’t think the experiment is ______ failure. At least we have gained ______ experience for future success.
A．the; a B．a; / C．a; an D．the; the
—Do you think you will be able to finish your writing by five o’clock today?
— ______. I’ll be busy with experiments all day.
A．Not a chance B．Not a little C．Not to mention it D．Not a big deal
