It is on October 1,2009 that the People’s Republic of China ____ its 60th birthday.
Our friendship _____ quickly over the weeks that followed.
—Have you heard about that fire in the market? — Yes, fortunately no one _____.
Many people have donated that type of blood; however, the blood bank needs _____.
_______ with care, one tin will last for six weeks.
When deeply absorbed in work, ______ he often was,he would forget all about eating or sleeping.