—Obviously, the boss looks happy again, doesn’t he?
—Yes. It’s said that he has ______ the difficult problem.
| A．succeeded in solve | B．tried to solve |
| C．managed to solve | D．been solved |
It's not how much money you make or who your daddy is ______ makes you the most attractive person in the world but the way you do some simple things.
| A．that | B．which | C．what | D．who |
A study has found that 80% of the people who ______ to be constantly distracted ______ more “working memory”.
| A．appears; have | B．appear; has | C．appears; has | D．appear; have |
In May 2011, Americans spent 53 billion minutes on Facebook, ______ it the most popular U.S. website.
| A．making | B．made | C．to make | D．having made |
A Colorado woman said that her iPhone 4 ______ fire while charging overnight.
| A．had caught | B．has caught fire | C．was catching | D．caught |
More and more old people are skiing but it has ______ to do with snow and slopes: this type of skiing stands for Spending the Kids Inheritance.
| A．something | B．nothing | C．everything | D．anything |