Beijing ______a lot in the past ten years. Now it has become one of the biggest modern______ in the world.
| A．changes, cities | B．changed, city | C．changed, cities | D．has changed, cities |
Sometimes playing computer games can ______ students’ study.
| A．get in the way of | B．get the way | C．get in the way on | D．get in the way with |
— I don’t know the new word.
— It doesn’t matter, you can ______ in the dictionary.
| A．look up it | B．look it up | C．look for it | D．look it for |
We teachers should ______ students ______ us questions in class.
| A．be allowed, to ask | B．let, to ask | C．encourage, to ask | D．allow, ask |
— I have trouble ______ my new computer.
— Don’t worry. I will show you ______.
| A．to use, how to use | B．to use, what to use | C．using, what to use it | D．using, how to use it |