________ some students are not aware of is ________ difficult life can be if they are not devoted to study.
| A．That; how | B．Which; what |
| C．What; what | D．What; how |
The activities organized by our school really gave us a platform ____ we learned team spirit.
| A．that | B．where | C．which | D．when |
She is not going to buy the sofa because it _____ too much room in the living room.
| A．takes away | B．takes on | C．takes down | D．takes up |
The businessperson wanted to sell his goods fast: ______, he chose his partner with great care.
| A．and | B．otherwise | C．however | D．therefore |
The experienced teachers try their best _____ the younger ones _____experience.
| A．to help…getting | B．help…get |
| C．to help…to get | D．helping…get |
John is not a man to count on, and it is very likely that the work ____ by the time he arrives here.
| A．is finished | B．has finished | C．will finish | D．will have been finished |