Oh, what a pity! It ____ so easy for me to bring those photographs I wanted to show you, but I ____ them at home．
| A．would have been, have left | B．would have been, had left |
| C．had been, left | D．was, left |
______ the price of gas is starting to come down, many people are choosing to take the bus or the train instead．
| A．Even though | B．Now that |
| C．In case | D．As though |
______ Tina cares about most is whether the company provides opportunities for further education．
| A．Which | B．What |
| C．That | D．Why |
______ the sight was impressive on the top of the mountain, I made an effort to climb onto it．
| A．To know | B．Know |
| C．Known | D．Knowing |
We still have some other ways to solve the problem．You ______ be worried．
| A．mustn’t | B．can’t |
| C．don’t have to | D．may not |
Harry Potter has made reading popular again, ______ is why parents and teachers like the book, too．
| A．that | B．who |
| C．which | D．what |