My father usually takes a shower the morning.
| A．in | B．for | C．on | D．At |
--Sit down, please．--___________.
| A．Thank you. | B．Good morning． |
| C．Hello． | D．Goodbye |
Bill said nothing could stop him ______ his dream.
A. to achieve
B. from avoiding
C.from achieving
Mrs. Zhang advised us ______ the math problem in another way.
A. to solve B. solving C. creating
This kind of machine ______ cutting meat in big restaurants.
A. is used to
B. is made from
C. is used for
Helen finds ______ difficult to climb to the top of the mountain in an hour.
A. that B. this C.it