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 |
All the children are busy going over their lessons as the final exam is __________.
| A．along the way | B．in the way | C．on the way | D．by the way |
Don’t interrupt me. I ________ letters all morning and have only finished five.
| A．write | B．have written | C．have been writing | D．am writing |
I would appreciate _______, to be frank, if the goods could be delivered as soon as possible.
| A．you | B．it | C．that | D．myself |
－What made you so delighted at Christmas?
－__________.
| A．I received many more presents than others |
| B．Because my parents promised me a new car |
| C．My uncle’s coming back from abroad |
| D．As there was an unusual celebration |
They no longer have to ______ large numbers of temporary workers to do the harvesting.
| A．take on | B．hire on | C．work on | D．carry on |