1、【题目】The_______workcontinuedformorethanaweekbuttherewasstillnosignofthemissingboy.

选项：

A.research

B.rescue

C.vessel

D.vast

答案：

解析：

1、【题目】Bothsugarandsaltcan______inwater.

选项：

A.desert

B.absorb

C.dissolve

D.involve

答案：

解析：

1、【题目】Please be serious. I am not _______. You should consider it carefully

选项：

A.sorting

B.joking

C.counting

D.comparing

答案：

B

解析：

暂无解析

1、【题目】Sometimesitisverydifficultto_______someoftheEnglishwords.Eventhenativespeakercannothelp.

选项：

A.decrease

B.create

C.define

D.delight

答案：

解析：

1、【题目】Pine trees are usually believed to _______ cold weather.

选项：

A.guard

B.accomplish

C.roar

D.endure

答案：

D

解析：

暂无解析

1、【题目】Thisriverformsanatural_______betweenChinaandKorea.

选项：

A.boundary

B.string

C.spot

D.zone

答案：

解析：

1、【题目】This river is so big that it is impossible to build a _______under it without modern technology.

选项：

A.canal

B.tunnel

C.channel

D.cable

答案：

B

解析：

暂无解析