Jam insisted that the book Mr Black referred to 　　　．

       A．was worth buying　　　　　       B．was worth to be bought

       C．being worth buying　　　　　     D．be worth buying

The young mother saw her baby fall to the ground,　　 brought her heart to her mouth．

       A．it　　　　　   B．and which      C．and that　　    D．this

　　　is known to us all is that the old scientist, for 　　 life was hard in the past, still works very hard in his eighties．

       A．As; whom　　　　　    B．What; whom     

       C．It; whose　　　　　      D．As; whose

A reward of 1,000 dollars will be given _______can find the lost child．

       A．whomever       B．whoever that   C．to whomever    D．to whoever

一 Mom, guess what? I’ve won the 1^st prize!

       一 This           a celebration! Let’s go to prepare a party．

       A．helps out             B．works out   

       C．calls for              D．pays for

       three times，but she still couldn’t follow what the old man said．

       A．Having told           B．Having been told

       C．She had been told   D．Though he had been told

Children under six are not ______to school except those of extraordinary intelligence．

       A．permitted           B．admitted     C accepted          D．received

They experimented _____the new medicine _____animals．

       A．on; to      B by ; on      C．with ; on       D with; to

----Where did you put the broom,Tom?

       -----I _______it behind the door．But now it is gone．

       A．do put          B．do putting           C．did to put      D．did put

The professor devoted all his life ____the treatment of AIDS．

A to research            B．in researching C．to researching   D．at researching