15．-- I haven’t got the reference book yet, but I’ll have a test on the subject next month.

　 -- Don’t worry．You ______ have it by Friday.

　 A．shall　　　　　　　　　 　　　 B．could　　　　　　　 　　　　 C．must　　　　　　　　　　　 　 D．may

14．By the time my mother came back from work, my sister and I 　　　　supper and were waiting for her at the table.

　 A．have cooked 　 　　　 B．were cooking　　　　　 C．had cooked 　　　　 　 D．would cook

13．It 　　　　a Saturday afternoon in May ______ Margaret could arrange for me to meet her elder sister.

　 A．was until, when 　　　　　　　　　　　　　　　　　　　　　　 B．was until; that 　

　 C．was not until, when 　　　　　　　　　　　　　　 　　　　 D．was not until; that

12．-How will you deal with these papers, Ann?

-I will leave them to 　　　　takes over the job.

　 A．anyone 　　　　　 　　　 B．someone　　　　 　　　　 C．whoever 　　　　　　 　 D．no matter who