ask my dearest teachers' help

need your help,teachers
1.We consider the matter____.
a. settle B. to be settled C. settled D. settling
2.We deal in decorative fabrics____ different varieties.
A. on B. of C. in D. for
3.Our offer ____ firm till August 31.
A. could be B. for C. will be D. is to
4. We inbite your attention to the fact, ______ yhr L/C vobrtinh yout order No.185 has not reached us in spite of our repeated requests.
A. what B. that C. where D. there

[Tdol]

1b/c
2b
3c
4b