Ifyouhavedifficultylocatingaparticularbook，pleaseaskourlibrariansfor___(assist).

沉默表明他对这个话题不感兴趣。

Whatshesays_________littlerelationtowhatsheactuallydoes.

Thisadvertisementisa___(type)exampleoftheirmarketingstrategy.

Ithoughtherrequestforfinancialaidwas___(reason),butsomehowitwasrefused.