Linda is thirteen ________ old. She is my friend.

-- My favorite TV _________ is A Bite of China (舌尖上的中国).--We like it, too. My mother often cooks delicious food after watching it.

Could you please give me______ on how to improve my English?

My hair is shorter than         .

—Will you fix up the machine according to the ______, David ? –No problem.