A:①③
B:①②③
C:②③④
D:③④
用方框中所给词或短语的适当形式填空
president,friendly,east,bore,comfortable,
go back,with,lots of,look forward to ,strict
下图为某二倍体动物(基因型为AaBb)细胞分裂的某一时期模式图。下列叙述正确的是
____ ____ Bill____for breakfast?