It suddenly occurred to me I hadn’t locked my door．
| A．which | B．where | C．that | D．whether |
It makes no difference __________.
| A．whether will you come tomorrow. |
| B．Whether or not will be pass the exam |
| C．If he will come to the meeting or not |
| D．Whether he will come to the meeting or not |
They don’t know _______ their parents are.
| A．that | B．what | C．why | D．which |
I am sure _______ you said is true.
| A．what | B．that | C．which | D．who |
The old man told us _______ and ________.
| A．to do what , to do how | B．what to do it, how to do it |
| C．what to do, how to do it | D．what to do , how to do |
---Do you know when the World Cup ________ next week?
--- Next Friday. When it ________, I will ring you.
| A．begins, begins | B．begins, will begin | C．will begin, will begin | D．will begin, begins |