During the period of recent terrorist activities, people _____ not to touch and unattended bag.
Don’t you think this sweater is too tight ____ the shoulder?
But for your timely help, I ________ the project as scheduled.
That student admitted ____ in the math exam, _____ that he would never do that again in the future.
If ____ unsolved, the problem of food safety may lead to more serious results.
---Tom almost ran into a pole yesterday while driving on the highway. --- I suppose he ____ too fast.