She is late. What _____have happened to her?
A should B must C can D would
He asked me _______ I could sing the song “My Heart will Go On.”
| A．if | B．weather | C．what | D．that |
Our teacher told us that the moon _________ round the earth.
| A．went | B．turned | C．go | D．turns |
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 |