It was in the lab _____ was taken charge by Professor Wang ______ they did the experiment.
He is doctor at all. Don’t trust him.
He is a member of our .
----Sorry, Michelle is a little shy. ----Never mind, I be that way when I was her age.
----How do you deal with disagreements between the company and the customers? ----They key the problem is to meet the demand by the customers.
a fire, hotel guests are asked to remain calm.