It is by no means clear ________ the president can do to end the strike.(2012·新课标全国,24)
This word is wrongly spelt;a letter is _______.
It makes _______ big difference to keep calm when giving _______ first aid.
_______, the experiment will be successful.
In the front of the hall _______ a group of pupils, who were listening to the lecture attentively.
Have you ever had a case _______ someone accused your journalists of getting the wrong end of the stick?