Before our study we did not have data that could tell us __ those changes were small or large .
| A．that | B．how | C．when | D．whether |
China’s population is expected to increase to about 1.5 billion, ____ it will start to decline slowly.
| A．after that | B．since when | C．on which | D．after which |
Your daughter ____ to be a famous musician, so you should keep her practicing the piano.
| A．promises | B．agrees | C．expects | D．pretends |
We think that it’s love, generosity and perseverancemake the worldit is today.
| A．what; that | B．that; what | C．which; what | D．which; that |
—Have you checked the engine?
—Yes, I did twice; there ______ be anything wrong with the car.
| A．won’t | B．mustn’t | C．needn’t | D．shouldn’t |
There came a point in his life____ he had to think about seriously about his future.
| A．what | B．that | C．when | D．which |