241. --- To what window are you standing in a _______?
--- No: 5, of course.
| A．lines | B．rows__________ | C．queue__________ | D．Thread |
11 .He felt_____ to work for human rights and progress.
| A．it his duty | B．his duty | C．that is a duty | D．that is his duty |
12.It took us over an hour_______along the street.
| A．walk | B．to walk | C．walking | D．walked |
13.I think it a great honour_______to visit your country.
| A．to invite | B．inviting | C．having invited | D．to be invited |
14.Many people now make_________a rule to buy cards for their friends before Christmas.
| A．themselves | B．it | C．that | D．This |
15.__________is very clear to everyone that he's round and tall like a tree.
16.
| A．This | B．What | C．That | D．It |