The father often buys his son English learning materials, ____at encouraging him to learn English.
The murderer ran away from his village, trying to avoid ______ by the police, but in vain.
----The two pairs of shoes are ______ the same size. ----But they are different ______ color.
Mary found herself looking forward more and more ________ the coming entrance examination.
__________ from heart trouble for years Mr. White has to take some medicine with him wherever he goes.
The room is very large and only little room_______ by the new piano.