He is the only one of those clerks ________ to the important conference.
| A．who was inviting | B．who were invited |
| C．who has been invited | D．who have been invited. |
Never believe all ____ you hear, never regret what you have never lost, and never throw away what you have in your hands.
| A．that | B．which | C．what | D．when |
He______to several European counties so far.
| A．was | B．has been | C．had been | D．will be |
While shopping ，people sometimes can’t help ______ into buying something they don’t really need.
| A．to persuade | B．persuading |
| C．being persuaded | D．be persuaded |
It was ______ten o’clock ______he returned home.
| A．\ …when | B．at …when | C．at …that | D．\...that |
It doesn’t matter to us _______ you do.
| A．what | B．when | C．how | D．why |