In that school, English is compulsory for all students, but French and Russian are _______.
Everybody in the village likes Jack because he is good at telling and ________jokes.
He was very tired,and________he didn’t give the market report.
Many people have donated that type of blood; however, the blood bank needs _____.
_______ with care, one tin will last for six weeks.
There is------in his words. We should have a try.