The computer system _____ suddenly while he was searching for information on the Internet.

Tom kept quiet about the accident ________ lose his job.

After studying in a medical college for five years, Jane ___ a job as a doctor in the countryside.

Our class _______ 55 students at that time.

Another form of poem that teenagers like is the Tang Poem, a poem usually ________ four or more than four lines.

Icy road conditions in Teasdale ___________ two roads being closed.

I don’t believe these people have achieved success __________. They must have put much effort into their work.

__________ of time and energy has been spent in investigating the murder.

Mary is going on a diet .  as she has put on _______recently.