How long ______ in Shanghai? — For two weeksI’m going to visit some schools in Shanghai

_____ guests we have, we wouldneed ___ food.

Mr. Green is always devoted to his work and has a sense of responsibility. That’s why he was asked to ________ the company when manager’s health was declining.

He looks sad. Let’s cheer him______.

“Don’t him，and he will catch up with us，”said Miss Gao with a .