_______ parents say and do usually has a life-long effect on their children.
A．That B．Which C．What D．As
You don’t need to make fancy foods to impress guests—it is something simple but good _____ will do.
A．what B．that C．which D．who
House prices vary from place to place and are usually high _____ there are famous schools.
A．where B．since C．when D．whether
—Have you received your new shoes?
—Yes. And at the same time I got the jacket I _____.
A．had ordered B．ordered C．have ordered D．order
As the intelligence of robots increases to match ________ of humans，we may use them to expand our frontiers.
A．it B．that C．which D．the
Experts believe that language learning is a process ______ skills are more important than grammar rules.
A．whose B．when C．of which D．in which
