I think our boat can pass the treacherous water ______ cautiously handled.A．unt

题型：不详难度：来源：

I think our boat can pass the treacherous water ______ cautiously handled.

A．until

B．if

C．lest

D．with

答案

解析

略

举一反三

______ nobody was very enthusiastic about it, they decided to cancel the trip.

A．See that

B．Seeing that

C．So

D．When

题型：不详难度：| 查看答案

Just as the tree is the unit of a forest and the book the unit of a library, ______ the molecule is the unit of matter.

A．as

B．like

C．so

D．thus

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Anyone can borrow books from this library _______ he keeps them clean and returns them in time.

A．even if

B．unless

C．so that

D．as long as

题型：不详难度：| 查看答案

Mother shut the window ______ she might keep the insects out.

A．because

B．in order that

C．till

D．as

题型：不详难度：| 查看答案

They agreed to rent the house ______ the roof should be repaired.

A．on condition that

B．as soon as

C．when

D．unless

题型：不详难度：| 查看答案