You can go and play games with your frie
题型:选择题
问题:
You can go and play games with your friends when you finish your homework. But remember all the
lights when you leave. [ ]
A. to switch off
B. to switch on
C. switching off
D. switching on
You can go and play games with your friends when you finish your homework. But remember all the
lights when you leave. [ ]
A. to switch off
B. to switch on
C. switching off
D. switching on