----My sister is very upset today.----It’s your fault. You ________ the bad news to her yesterday.
New technologies have made __________ possible to turn out new products faster and at a lower cost.
The new bridge __________ by the famous architect is __________ now.
Without enough sleep, I just cannot __________ an original thought no matter how hard I try.
Students must have access __________ a good library.
E-mail, as well as telephones, __________ an important role in daily communication.