We all feel it is Jack as well as his wife that ________for their son’s bad performance at school.
The tiger, once a animal to humans, is now of disappearing on the earth.
On holidays, they prefer to _____ at home rather than _____.
—Hey! What's the rush? —The plane ________ at 4∶00 and I need to see my uncle off.
----Would you like to join me for a quick lunch before class? ---- _________, but I promised Nancy to go out with her.
Although they are at the same university, the boy spends _______ money as the girl every month.