_____ he is very busy, he spends at least two hours every day surfing the Internet in order to find out the latest development in science and technology.
| A．Even though | B．When | C．Unless | D．Whether |
---- I was riding along the street and all of a sudden, a car cut in and knocked me down.
---- You can never be _______ careful in the street.
| A．very | B．too | C．so | D．much |
Can you image that the CEO of Pu Tian Software Company doesn’t __________ dress?
| A．call for | B．apply for |
| C．care about | D．allow for |
The Great Wall is __________ tourist attraction that millions of people pour in every year.
| A．so well-known a | B．a so well-known |
| C．such well-known a | D．a such well-known |
She has a gift for creating an atmosphere for her students_________ allows them to communicate freely with each other.
| A．which | B．where | C．what | D．who |
The days are gone__________ physical strength was all you needed to make a living.
| A．when | B．that | C．where | D．which |