Customers are asked to make sure that they ____ the right change before leaving the shop.
| A．will give | B．have been given | C．have given | D．will be given |
Poetry written from the perspective of the urban youth tends to _______ their anxiety over a lack of sense of belonging.
| A．rebel | B．refresh |
| C．reveal | D．resign |
We are born to win! The _____ to success is in our genes, say scientists.
| A．drive | B．gravity | C．request | D．squeeze |
Mensa is a society for bright people, and it aims to create a platform ______ many think can provide the chance to share their thoughts and ideas.
| A．where | B．which | C．what | D．who |
One of the firms I applied to has offered me a job but I _____ my options open until I hear from the others.
| A．have kept | B．will have kept |
| C．am keeping | D．keep |
It is important to make new laws and create international standards for these laws similar to _______ concerning international airspace.
| A．what | B．that | C．those | D．it |