—How was the journey? Did you come back by plane or by train?—For some reason, I came back by train. I ____ back by plane, though.
We can improve our English by __________ of reading and listening to it a lot every day.
In this experiment, the famous professor showed three different __________ to the study of physics.
A new __________ to teaching English, is being used here, and it has proven to be very helpful to the students.
Tsinghua University, __________ in 1911, is home to a great number of outstanding figures.
I was __________ to find that I won the competition to design a new computer. The news was really __________.