It is difficult to ________ the implication between the lines.
A、gettoC
A开始，接触C找出，理解D下来，写(记)下来
He was ______ to withdraw from running for the presidency.
It_______methreeyearstodrawthebeautifulhorses.
Notuntilrecently_____thatThompsonhadbentellingthetruthallalong.
He would have given you more help, if he ________ so busy.
Theprofessoraskedaquestion,andDavid________agoodanswer.
