问题
Find ways to praise your children often，____you’ll find they will open their hearts to you
A:till
B:or
C:and
D:but
B:or
C:and
D:but
正确答案是：
同类题型
When I entered the step-classroom(阶梯教室), the lecture _________ and the people _________ attentively.
Elephants have their own way to tell the shape of an object and_________ it is rough or smooth.[ ]
The robot caught a virus. ____________, it didn’t work.
you got a "D" in biology．_—Well, I found that subject hard． I think I’II drop it for history．