词汇运用（共l0小题；每小题l分，计l0分）
根据句子意思和括号中的中英文提示填空，每空一词。
She stood in the doorway, unable to decide __________ to go in. (是否)
It is good for your health to           deeply. (呼吸)
I’ve found great            in doing the work.(困难)
A lot of new            have been sent to the poor children. (字典)
The TV program Super Brain（最强大脑）is so fantastic that it is well worth____  ( watch)．
Today is my sister’s __________ birthday. She feels very happy. (twenty)
The news is not so           . We are sure he can get it. (surprise)
Do you know the           , who broke the window? (true)
The little boy is so__   __ (care) that he often leaves his homework at home.