Living things are dying out quickly. Let’s ask ____ destroying them in the past years.

The reports went missing in 2012 and nobody _____them since

Could we finish the project according to the schedule?—I doubt thatThe problem remains ______ we can get financial aid within this week

I’m very happy ___ a chance ___ your school

Tom, your shirt is so dirty!— Mum, I _____ my storeroom downstairs。