.Professor White has received a letter ___ to give a lecture in Peking University.
| A．to be invited | B．being invited | C．invited | D．inviting him |
Not a single word_______ when _______about his late mother.
| A．he said, asked | B．did he say, asked |
| C．he said, asking | D．did he say, asking |
Han Han wrote several novels, almost all of them_______ by teenagers.
| A．appreciated | B．are appreciated | C．were appreciated | D．having appreciated |
I don’t like drinking milk. Please _______coffee for milk.
| A．replace | B．provide | C．serve | D．substitute |
I would appreciate ______if you could lend me a hand.
| A．you | B．this | C．it | D．that |
My first summer vocation in the high school, _______I spent a fortnight on the farm, is really unforgettable.
| A．when | B．that | C．which | D．the one |