This word is wrongly spelt；a letter is _______.
A. left behind B. left alone C. left out D. left off
It makes _______ big difference to keep calm when giving _______ first aid.
A. a, / B. /, the C. a, the D. /,a
_______, the experiment will be successful.
A. If carefully doing B. If it done carefully
C. If carefully done D. If doing carefully
In the front of the hall _______ a group of pupils, who were listening to the lecture attentively.
A. were sitting B. sat C. sit D. was sitting
Have you ever had a case _______ someone accused your journalists of getting the wrong end of the stick?
A. where B. which C. that D. when
People all over the world are kept _______ of what is happening at once by means of the Internet.
A. suspected B. convinced C. approved D. informed
