They must have finished the task by the end of last month, ___________?
| A．mustn’t they | B．hadn’t they | C．haven’t they | D．didn’t they |
The schools themselves admit that not all children will be successful in the jobs ______ they are being trained.
| A．in that | B．for that | C．in which | D．for which |
______ scientists know where a storm will happen, winds will suddenly change, carrying the storm to a new direction.
| A．Even if | B．Since | C．Despite | D．Unless |
When doing your history homework on the Civil War by typing in details to Google, a list of related books will ______ .
| A．come on | B．come up | C．come down | D．come across |
He _______ to go to Tsinghua University to study after graduating from high school, so he is working very hard.
| A．demands | B．defends | C．desires | D．designs |
The thief went into the house at midnight, only ______ by the policemen hiding there.
| A．to catch | B．catching | C．to be caught | D．caught |