Our classroom is very clean. Do you know who＿＿cleaned it﹖
| A．was it that | B．it was that | C．was it who | D．he was |
Written in a hurry, _____.How can it be satisfactory?
| A．they found many mistakes in the essay | B．Sam made lots of mistakes in the essay |
| C．there are plenty of mistakes in the essay | D．the essay is full of mistakes |
Which sport has the most expense ___training equipment, player’s personal equipment and uniform?
| A．in terms of | B．in relation to | C．by way of | D．in case of |
Teterboro is the same airport where a plane took off earlier this morning before colliding (碰撞)with a sightseeing helicopter over the Hudson River.
| A．where | B．as | C．that | D．which |
____you stepped into the lab with your shoes on? You are supposed to take them off before you enter it.
| A．How come | B．How about | C．How dare | D．How long |
--Do you know the 3G mobile phone will come into the market soon?
--Really? It is said to be superior ____any other model. I can’t wait to buy ____.
| A．to ; one | B．than; one | C．to ; it | D．than; it |