If you have trouble pronouncing these words, you can repeat them over and over again ________ you are comfortable with them.
Parents ________ good conditions ________ us. We should thank them.
Suzy_______ to school in the past, but now she takes a bus.
which of the following is NOT a natural disaster?
“We give him a book.” The structure (结构) of sentence is .
—Did you see the traffic accident happen yesterday? —Yes. It happened when Ipast the museum.