----Mr. Li told me once he had a fall and broke his leg . ----_______was that. A Since when B For how long C How long ago D How soon
________ with some research materials, he decided on three possible approaches in his experiment.
- Remember the first time we ________, Ed ? - Of course, I do. You ________ a song on the stage.
Our bodies are ________ by working out. Similarly, our minds are developed by learning.
________ his spare time that his English has improved a lot.
The Chinese government holds that peace and development ________ the Taiwain Straits is the correct path.