As a new graduate, he doesn't knowit takes to start a business here.
| A． | how | B． | what | C． | When | D． | which |
Someone called me up in the middle of the night, but they hang up ____ I could answer the phone.
| A．since | B．after | C．until | D．before |
In American schools where students are trained to be creative, some Asian students fail to ______ the creativity they’ve developed and take tutoring classes to raise their points on SAT.
| A．take notice of | B．take advantage of |
| C．take up | D．take over |
Li Ning was able to set up a school for gymnasts in 1991, ______ he has continued to help young people to achieve their sporting ambitions.
| A．when | B．dring which | C．since then | D．since when |
Now 70 years old, the British physicist, Pendry can’t remember a time when he was not asking a question as a kid, joking that he ________ his parents to death.
| A．should torment(折磨) | B．must torment |
| C．must have tormented | D．should have tormented |
It was not until this year _____ scientists managed to make a cat and a goldfish disappear from sight using an invisibility cloak(斗篷)
| A．that | B．when | C．while | D．As |