---I think it’s impossible for us to work out the plan in just two days. It’s too difficult.---You’re right. We can’t be _______ careful and hard while working on it.
— What do you think ofnature reserve you visited last weekend? —It’s great. It is ideal home for wildlife.
My father likes teanothing in it.
There’srain on the road, so she should drive carefully.
By the time I locked the door, I realized I ________ my keys at home.
It is cruel___ them to catch the sharks and cut______ their fins.