Shortly after the accident, two＿＿＿police were sent to the spot to keep order．
| A．dozen of | B．dozens | C．dozen | D．dozens of |
—Have you __________?
—No. I had the wrong number.
| A．got in | B．got away | C．got off | D．got through |
Ladies and gentlemen, please remainuntil the plane has come to a complete stop.
| A． | seated | B． | seating | C． | to seat | D． | seat |
I like this house with a beautiful garden in front, but I don't have enough money to buy.
| A． | one | B． | it | C． | this | D． | that |
He told us whether _________ a picnic was still under discussion
| A．to have | B．having | C．have | D．had |
—May I open the window to let in some fresh air?
—___________
| A．Come on | B．Take care | C．Go ahead! | D．Hold on! |