With a lot of difficulties _______, they went to the seashore and had a good rest.
| A．settled | B．settling |
| C．to settle | D．being settled |
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 |