【单选题】
____ is essential to a successful scientist; he cannot hope to make any progress if he cannot work in a controlled way.
【单选题】
The airport is five miles ____ my house.
【单选题】
Many a customer____ about the poor quality of the washing machine.
【单选题】
____ by this, he couldn’t say anything.
【单选题】
George is so ____ in debt that he is afraid to show up in the pub in case he meets his six creditors.
【单选题】
Every one was ____that day.
【单选题】
23. The singer and dancer ____ our evening party.
【单选题】
The policeman needs to see____ your ID card or your drivers license.
【单选题】
His____ to carry out the plan was weakened by the difficulties he met with.
【单选题】
The textbook is for the ____ students, not for the beginners.