My interest in English ______ September 2009 when I met our present English teacher.

It ________him that they were playing a trick on him.

(2012·福建高考)China recently tightened its waters controls near the Huangyan Island to prevent Chinese fishing boats from ________ in the South China Sea.

 We drew this conclusion on the _______of research and experiments.

Progress has been very good so far．We are，_________, confident that the work will be completed as expected．