A:
B:
C:
D:
____ 的棵数-____的棵数=32
With nothing ________ to burn, the fire became weak and finally died out.
美国提出“星球大战”计划从对苏战略上看,最主要目的是
Tim:Yes,I have an e-friend in the US.His name is David.He is 15 years old.He is a____student.