34．I have had some bad times before, but seldom________so helpless as now.A．I ha

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34．I have had some bad times before, but seldom________so helpless as now.

A．I had felt

B．have I felt

C．I have felt

D．had I felt

答案

解析

略

举一反三

Only after you have known someone for some time producers his real worth.

A．you begin

B．do you begin

C．you do begin

D．begin you

题型：不详难度：| 查看答案

The ship would have sunk with all on board ______ for the captain.

A．if it was not

B．had it not been

C．if it has not been

D．not had it been.

题型：不详难度：| 查看答案

Bill was staying on a farm with his uncle last summer. So ___ Mary.

A．did

B．has

C．was

D．is

题型：不详难度：| 查看答案

They don"t study in NO 1 middle school, ___ those boys.

A．so do

B．so don"t

C．neither study

D．nor do

题型：不详难度：| 查看答案

At the United Nations Climate Change Conference, the UN Secretary General points out that, ______, the climate situation will get worse and worse.

A．if not dealing with properly	B．unless dealing with properly
C．if properly dealt with	D．unless properly dealt with

题型：不详难度：| 查看答案