What can someone do to end relaxing? Choose the most suitable option to answer the above question. Options：  A. feeling better  B. invigorating  C. sleeping  D. stress  E. deep breathing
B

Houses require a study what to be built on? Choose the most suitable option to answer the above question. Options：  A. very large  B. pornography  C. foundation  D. walls  E. hole
C

The child couldn't lift the box of lead, it was what? Choose the most suitable option to answer the above question. Options：  A. toxic  B. light  C. isolated from sulphide pbs  D. very heavy  E. very dense
D