Scientists think they have ____ in their attempt to find the causes of some majo

题型：模拟题难度：来源：

Scientists think they have ____ in their attempt to find the causes of some major disease. [ ]
A. broken through
B. worked through
C. got through
D. gone through

答案

举一反三

Every possible use of time should be ____ to look into the case. [ ]
A. used
B. made
C. built
D. taken

题型：模拟题难度：| 查看答案

It snowed heavily last night and we had to use thick sticks to _____ the roof of the hut. [ ]
A. hold on
B. hold up
C. hold back
D. hold out

题型：湖北省模拟题难度：| 查看答案

The kind old couple offered to _____ the poor homeless child, though life was hard for them. [ ]
A. bring in
B. put in
C. take in
D. turn in

题型：湖北省模拟题难度：| 查看答案

After the rich man heard the touching story, he _____ most of his money to charity. [ ]
A. gave in
B. gave off
C. gave away
D. gave out

题型：辽宁省模拟题难度：| 查看答案

The boy was so careless that the glass fell from his hand and it _____ on the floor.[ ]
A. broke in
B. broke down
C. broke up
D. broke out

题型：安徽省模拟题难度：| 查看答案