II. Choice 23%

21.   When I got back home I saw a message pinned to the door ________ “Sorry to miss you; will call later.”
A. read                        B. reads                C. reading                    D. to read

22. What do you think of his proposal that improvements ________ in the old type of vacuum

cleaner?

A. be made                   B. will be made      C. would be made         D. will have to be made