You’d better ______ some hot water into the bottle in case the teacools down.
| A．add | B．fill | C．fill in | D．put |
Give this to _____ you think can do the work well.
A whoB whoeverC whomeverD however
I only know it is a ____ distance away from here, but I don’t know ____ the distance exactly is.
A great, how far B great, whatC far, how farD far, what
Unless ____ to speak, you should remain silent at the conference.
A invitedB invitingC being invitedD having invited
I’ve bought an English dictionary which you can ____ if you meet new words.
A get toB come toC refer toD look up
Every possible means_____ been tried，and we find only______ this means can we do it well．
| A．have，in | B．have，by |
| C．has，in | D．has，by |