From his _______expression, we can guess that the problem maybe was quite _______.
| A．puzzled ; puzzling | B．puzzling; puzzled |
| C．puzzled; puzzled | D．puzzling; puzzling |
– Are you cleaning my room?
– I can’t help _____. I can’t bear seeing people’s room in a mess!
| A．it | B．this |
| C．anything | D．so |
He thought that painting copied by a modern artist was ______ great value and bought it ____ over a thousand dollars.
| A．at; for | B．of; for |
| C．of; at | D．for; by |
Let him who tied the bell onto the tiger take it off -- _____ started the trouble should end it.
| A．whomever | B．who |
| C．whoever | D．anyone |
Social networking is an important factor _______ business success.
| A．devoting to | B．appealing to |
| C．attaching to | D．leading to |
During the expedition in the mountains we passed through a place where in a little while we all lost out ______ of direction.
| A．sense | B．feeling |
| C．idea | D．ability |