________ the arrival of the police, I would have been robbed by two masked men.
| A．Had it not been for | B．If it were not for |
| C．Had it been not for | D．If it would not be for |
I have been advised to arrange for insurance _________ I need medical treatment.
| A．so that | B．unless | C．in case | D．though |
________ in the traffic jam, she failed to catch the train, which mader her upset.
| A．Catching | B．Having caught | C．To catch | D．Caught |
I don’t speak any French. I wish I _______ harder when I was at school.
| A．had worked | B．worked | C．would work | D．work |
He was seriously injured last week and that’s _______ he didn’t participate in the competition.
| A．when | B．how | C．why | D．what |
Hearing the doctor announce their son was safe and sound, the couple sighed with ________.
| A．satisfaction | B．relief | C．interest | D．permission |