43. He worked with deaf-mutes _______ Boston University. ( at , in , with , on) 44. He'll come _______ to pick you_______ ( on/ in , over/ on , in/ up , over/ up ) 45. Mrs. Lien said you could reach her _______ 8 603 423. ( at, on, in, for) 46. English is spoken all ________ the world. (in, on, about , over) 47. The lighting fixture is ________ the dinner table . ( on, above, under, beneath) 48. He had to stay home ______ he was ill. ( because - so - and – until )