Nina is clever but kind of lazy. If she ___harder next term, she ___ better grades.

Daniel must have lost his job in that unemployment crisis, __________he? — I don’t think so．Yesterday I saw him working together with his colleagues.

______ do you write to your parents? 　　 — Once a month. [ ]

You borrowed some money from me last year, Mr Green. — Did I? _____did you lend me? [ ]

I feel sorry for those young people who don’t care for their aged people_______mine.