I’m sure David _________ when we get home.
| A．is still sleeping | B．is to be sleeping |
| C．will still be sleeping | D．will have been sleeping |
—Why does she always ask you for help?
—There is no one else _______, is there?
| A．who to turn to | B．she can turn to |
| C．for whom to turn | D．for her to turn |
Do you have any idea _______ is actually going on in the classroom?
| A．that | B．what | C．as | D．which |
Mary wrote an article on _______ the team had failed to win the game.
| A．why | B．what | C．who | D．that |
Doris' success lies in the fact _______ she is co-operative and eager to learn from others.
| A．which | B．that | C．when | D．why |
See the flags on top of the building? That was _______ we did this morning.
| A．when | B．which | C．where | D．What |