ScientistshavefoundnooflifeonM

Scientists have found no ________of life on Mars so far,though great efforts have made on the research.

A．symbols

B．signs

C．marks

D．signals

登录免费查看答案和解析

相关试题

Hearing the loud noise，the boy looked out of the window,__________.

A．surprised and nervously	B．surprising and nervous
C．surprised and nervous	D．surprisingly and nervously

收藏答案/解析

I won’t change my belief _________ success comes to those who act．

A．that

B．which

C．where．

D．how

收藏答案/解析

What she went through those years ________ the best in her,such as patience and will power．

A．brought up

B．brought out

C．brought about

D．brought down

收藏答案/解析

Close the door of fear behind you，and you _________ the door offaith open before you．

A．see

B．have seen

C．will see

D．are seeing

收藏答案/解析

The next day is Thanksgiving Day,a special moment _________ we can express our gratitude, respect and love we feel all year round．

A．which

B．when

C．where

D．／

收藏答案/解析