A：司马懿和司马昭
B：司马昭和司马炎
C：司马炎和司马睿
D：司马炎和司马昭
(____)Hi, Chen Jie! This is Mark.
(____)What's the weather like in Beijing?
(____)It's rainy. How about London?
(____)Hi, Mark!
(____)It's warm.
计算．
5×5=____ 3×5=____ 2×5=____ 5×1=____ 5×4=____
4×5=____ 5×2=____ 5×3=____ 1×5=____ 5＋5=____
