2019年mpacc考试英语真题——连词67

{01}________ he was only five years old, he could take care of himself when his mother was away．
A.s
B.Since
C.Although
D.Because
解析：两个句子之间不是因果关系，而是让步关系。
本题选C。
{02}Time is life; ________, master your time and life．
A.however
B.therefore
C.moreover
D.otherwise
解析：
本题选B。