27. “Shall Mary come and play computer games?”
“No, _______ she has finished her homework.”
| A．when | B．since | C．unless | D．as soon as |
I feel it an honour __________ to speak here.
| A．to ask | B．asking | C．to be asked | D．asked |
George Washington was born in 1732 in a rich family in _______ is now the state of Virginia.
| A．which | B．where | C．that | D．what |
I don’t know who invented _______ telephone, it’s really _______ most useful invention.
| A．the; a | B．the; the | C．a; a | D．不填；不填 |
I would appreciate ______ if you could let me know in advance when the meeting will be held.
| A．that | B．this | C．it | D．you |
--- How did your students express their thanks to you on Teachers’ Day?
--- A gift, together with many flowers ______ sent to me by my students.
| A．is | B．are | C．was | D．were |