—I can’t find my purse anywhere.—You __ have lost it while shopping.
You are late. If you ____ a few minutes earlier, you ____ him.
Those are model teachers, most of ______ are young women.
_____ more time, we could have done the job better.
Could it be in the public phone box ______ you made me the call yesterday ______ you lost your IP card?
There is no point making complaint of getting low-paid ______ you don’t make any effort at all.