Ayearlater，withthenation’seconomy________，Bush’sapprovalratingdroppedbelow40percent
B
in trouble ：陷入困境。由于经济陷入困境，所以支持率下降了很多，符合句意。
Thefarmingmethodshavebeen________improvedwiththeinventionofthenewmachine.
Basically，theseattitudesamounttoabelief________leisurecanandshouldbeputtogooduse
Fishis________andexpensiveatthistimeoftheyearinthisarea.
AlthoughTomissatisfiedwithhisacademicachievement，hewonders_______willhappentohisfamilylife.