I wrote a letter to John for his help during my high school years. without which I the college entrance exam.
| A． would fail | B．would have failed | C．should fail | D．must have failed |
Not until she took off her dark glasses ________ she was a famous film star.
| A．I realised | B．that did I realise | C．did I realise | D．that I realised |
Do not start a book unless you can see from the first few pages that it is ________ you can easily read and understand.
| A．that | B．one | C．the one | D．that one |
______ is often the case, many Chinese parents save enough money for their children’s further education.
| A．Which | B．That | C．As | D．Where |
Little Bob is often educated by his parents to be good and friendly to anybody even if ________.
| A．attacking | B．is attacked | C．to be attacked | D．attacked |
--- Mike, it’s a pity you didn’t come to last night’s concert．It was really great!
--- Really? If I ________ so busy, I would have gone with you.
| A．hadn’t been | B．weren’t | C．shouldn’t be | D．wouldn’t be |