—Did you do well in the math examination yesterday?
—I'm afraid not. Some problems were not as easy as they________.
A:supposed
B:supposed to be
C:were supposed to be
D:were supposed to
下列物质的化学式,书写正确的是( )
We have classes from Monday to F____ .
My sister enjoys l____ to pop music.
I’m s____ for taking your pen by mistake.
The little boy cried s____ when his best friend moved to another city.
Lily has a good h____ of reading English stories every day.
从-2、1、 这三个数中任取两个不同的数相乘,积是无理数的概率是____.
图为人体泌尿系统示意图,下列有关叙述正确的是( )