We had an anxious couple of weeks ______for the results of the experiment.

MrSmith was very disappointed to see the car he had had _____ went wrong again

.Nobody noticed the thief slip into the house because the lights happened to_____.

He tried his best to solve the problem, ______ difficult it was

Nowadays, there seems little room fortraditional literature, but skills like writing or critical thinking actually________ promise for opening doors to good entry-level jobs.