31．I shah be ready to raise the matter with him when a suitable occasion ________．

A．offering itself　　 　 B．offers it　　 　　　　　 C．is to offer itself 　　　 D．offers itself

30．Every day I handled hundreds of books whose meaning was hidden from me，mentally ________ them by size and color，as a child would．

A．dividing　　　　 　 B．divided　　　 　　　 C．was divided　　 　　 D．to divide

29．--How did you find your visit to the museum，Alice?

-- ________．

A．By taking a No．10 bus　　　　　 　　　　　 B．Oh，terrific，indeed

C．I went there with my friends　　　　 　　　　 D．A policeman showed me the way

28．My back hurts，so I ________ on the floor lately．The bed is too soft．

A．have slept　 　　　 B．is sleeping　　　 　 C．have been sleeping　 D．sleep

27．You ________ have any trouble in passing the interview since you have prepared a great deal．

A．mustn't　　　　　 B．shan't　　　　　 　 C．can't　　 　　　　　　　 D．shouldn't

26．Another minute， ________ we will finish the experiment．

A．and　　　　　 　　 B．or　　　　　　 　　　 C．if　　　　　 　　　　 D．so that

25．________ simple it is，there's no place like home．

A．Whatever　　 　　　　 B．So　　　　 　　　　　 C．No matter　　 　　　　 D．However

24．When I said some students made the bed themselves，I ________ to you．

A．didn't refer　　　　　　　　　　　　 　　 B．didn't mention

C．wasn't referring　　　　　 　　　　　　　　 D．wasn't mentioning

23．No agreements were made in the interview as neither side would accept the conditions of ________．

A．either　　　　 　　　　 B．the other　　　 　　　 C．others　　　　 　　　 D．another

22．The peaches are very delicious．He'd like to have ________ fourth one because third one is rather too small．

A．the；a　　　 　　　　 B．a；the　　　 　　　　 C．the；the　　　 　　 D．a；a