_____ they are very tired, they feel happy because they’ve finally finished their project.
--There may____ two new schools in the neighborhood.-- I hear that one is a primary school, the other is a high school.
I will go on with the experiment unless my mother _____ me to stop.
____ they are working ! We should learn from them.
–The little boy seldom puts away his toys by himself, does he?-- _____. So his mother has to do it for him.
The tiger is now in danger of disappearing. So more attention ____ to protecting the tiger.