reached _____ back door,Jack saw _____ strange sight.

It is reported that in the next few years the earth______ possibly be hit by more extreme weather like storms. [ ]

______ Kitty ______ Cathy is going with you because oneof them must stay at home.

The conservation area is very important for preserving many animals and plants, which would ______ run the risk of becoming extinct

s the price of petrol these days ——-Oh, it______ sharply since last month.