31.The number of the books on the desk (is, are) ten.
30.They each (has, have) a good book.
29.None of them (is, are) workers.
28.None of them (is, are) a good teacher.
27.All (has, have) come to the party.
26.More than one boy (has, have) been to the USA.
25.The shoes under the bed (is, are) mine.
24.There (is, are) a pair of shoes under the bed.
23.Three years (has, have) passed since he left here.
22.A woman with 2 boys (is, are) working in the field.