In the face of ________ failure, it is the most important to keep up ________ good state of mind.
There was _______ time _______ I hate to go to school.
---It’s getting dark, but Mr. Johnson is still at his office. ---No surprise. Who else can ______ he does?
Since David ______ downloaded a virus into his computer, he can not open the file now.
---How often do you eat out? ---______, but usually once a week.
--Have the police found the parents of the baby found by the road? ---Not yet. His identity ______.