So______that many parents are too worried to let their children travel alone at the beginning of the new term.
I receive $500 each month from my family and that has to _______all my expenses.
Having been praised by the teacher, the little girl ran back home, _______.
-----Are you a journalist? -----No, but I _______.
_______ the U.S.-China relationship as “the most consequential(重要的)” in the world, U.S. Secretary of State John Kerry called for greater cooperation between the two powers.
Seeing his father’s angry expression on his face, Andy _______ the conversation from one subject to another.