Jim lives in a place _____Gum Tree.[ ]
A.calls
B.calling
C.called
D.to call
答案:C
下列选项中,对问题解决具有影响的因素有()。
A.酝酿效应
B.知识经验
C.问题表征
D.心理定势
It seldom________here but it________heavily these days.
A.snows;snows
B.snows;is snowing
C.is snowing;is snowing
D.is snowing;snows