Question

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

Answer 1

C
解析　分析前后分句逻辑关系，是条件或假设关系，而且“祈使句＋and/or/otherwise＋陈述句”是固定句型，所以选C项。