— Mr. Smith was really helpful when you were in financial difficulty during those years.
— Definitely. I can never appreciate his kindness _____.
| A．seriously | B．well | C．enough | D．properly |
I missed the last bus and had no money for a taxi; so I could do nothing but_______ home last night.
| A．to walking | B．walk | C．walking | D．walked |
Who do you think will _______ since the president has resigned?
| A．take over | B．take up | C．take in | D．take off |
--How was your weekend, Rose?
--Awful! This was the first time I ________ alone at home, bored to death.
| A．had left | B．had been left | C．have been left | D．have been leaving |
Many citizens urged their government to take measures to cut _______ their carbon emission to reduce greenhouse effects.
| A．off | B． up | C． out | D．down |
Dr. Peter Spence, ______headmaster of the school, told us, “______fifth of pupils here go on to study at Oxford and Cambridge.”
| A．不填; A | B．不填; The | C．the; The | D．a; A |