—We all had a lot of fun at the barbecue yesterday. Pity you weren’t there.
— I really should have gone with you, but I ________ on some remaining problems.
| A．was working | B．would work | C．worked | D．had worked |
Adam and Max hardly knew what to talk about: they had so little ________.
| A．in public | B．in return | C．in common | D．in reality |
______ the assignment said above, you have to write a 200-word composition on environment pollution.
| A．In addition | B．Apart from | C．Except | D．Other than |
It is the ability you have _____ matters, not where you graduate from or what you look like.
| A．which | B．that | C．what | D．it |
Our school has an absolute _______ over others, for we have the most hardworking teachers and students.
| A．profit | B．benefit | C．advantage | D．effect |
So suddenly ________that the animals in the zoo looked very frightened during the total solar eclipse (日全食)．
| A．did the sky turn dark | B．the sky did turn dark |
| C．turned the sky dark | D．was the sky turned dark |