Mrs. Brown is nice. Every day she tries to cook _____ for me during my stay in Canada.

Reading an English novel last night , I ______ some useful expressions for writing . .

Mary realized she ______

Let’s ______ the students into three groups and ______ boys from girls; in this way each group will have a _______ room to live in.

The jet fighters were waiting at the airfield, ________ radar searching the sky