In order to let more people pay attention to their plan, they _________ some signs on the wall.

do you play basketball in school? —Twice a week.[ ]

How many women teachers are there in your school?－_____ of the teachers _____ women

Have you heard of the big fire last night? –Yes. The firemen struggled against it for about 35 minutes and _______ the fire at last.

I want to know______do to improve my English.