The argument remains extremely heated it is necessary to frequently update teaching material.
| A．that | B．which | C．if | D．whether |
Miss Smith is a friend of ______.
| A．Mary‘s mother’s | B．Mary‘s mother |
| C．Mother’s of Mary | D．Mary mother‘s |
His “Selected Poems” _____first published in 1965.
| A．were | B．was | C．has been | D．are |
Writing stories and articles _____what I enjoy most，
| A．is | B．are | C．was | D．were |
The number of students from the north ____small.
| A．are | B．is | C．have | D．has |
A number of students _____from the south.
| A．are | B．is | C．have | D．has |