______ he referred to in his article was unknown to the general reader.
--- Poor Steve! I could hardly recognize him just now! --- _______________, He has changed so much.
It was with the help of the local guide the mountain climber was rescued.
It was not until near the end of the letter she mentioned her own plan.
It is by no means clear ______ the president can do to end the strike.(2012.全国新课标Ⅱ)
It remains to be seen ______ the newly formed committee’s policy can be put into practice. (2013 .陕西)