It is in the east of England _______ there is no doubt ________ it is going to rain tomorrow.
A:where; whether
B:that; that
C:that; whether
D:where; that
种子萌发的必要条件是具有____.
某生物兴趣小组观察了几种生物不同分裂时期的细胞,并根据观察结果绘制出如下图形。下列与图形有关的说法中正确的是
Let's join the ____ (swim) club.
听第6段材料,回答小题。