高考英语 求详解I kept getting mysterious phone calls ----the caller

高考英语 求详解I kept getting mysterious phone calls ____the caller would hang up as soon as I answered. A.where B.which C.when D.that (这难道不是考同位语么 c选项哪里错了）2.The modern carpenter would be just able to produce craftsmanship as the carpenter of fify years ago if _____proper tools and materials.A.to be given B being given C giving him D given3.Steve Jobs had been fighting against cancer for eight years ___he died on October 5.A.so that B before C in case D after4.I should be obvious to everyone ___ we need to make some changes.A.that B.how C.what D.where