It makes his life quite different ________he has received education abroad．
| A．that | B．which | C．what | D．how |
_____ in a poor family made Jack very hardworking when he was still young.
| A．Brought up | B．Bringing up | C．Having brought up | D．Being brought up |
To my mind, the secret to happiness__________ your successful work and your contribution towards others’ happiness.
| A．results in | B．consists in | C．brings in | D．takes in |
Will you see to _____ that my children are taken good care of while I am away?
| A．it | B．me | C．yourself | D．them |
______ twice, the postman refused to deliver our letters unless we chained our dog.
| A．Being bitten | B．Bitten | C．Having bitten | D．To be bitten |
_____ for the free tickets, I would not have gone to the films so often.
| A．If it is not | B．Were it not | C．Had it not been | D．If it were not |