Martin usually helps his mother take out the rubbish.<br />Martin usually helps his mother take out the rubbish.<br />It's a good idea to write him a letter to say sorry.<br />The boy was sleeping when it began to rain.<br />I saw a program on TV and knew more about the giant pandas.<br />2019 Changchun International Marathon is the most enjoyable sports.<br />2019 Changchun International Marathon is the most enjoyable sports.
B. 
C. 
D. 
E. 
F. 
