The young man, making several attempts to beat the world __________ in high jump, decided to have another try.
| A．recorder | B．record | C．format | D．concept |
Jack, it’s ________ bad manners to blow your nose at ______ table.
| A．the; a | B．the; / | C．/; the | D．/; / |
The police always take advantage of dogs’ ____ sense of smell to search for something.
| A．sensitive | B．sharp | C．practical | D．tremendous |
---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．much | B．very | C．so | D．too |
A dozen ideas were considered _____ the chief architect decided on the design of the
building.
| A．because | B．before | C．whether | D．unless |
Scientists are trying to develop a special material, ________ they will make use of in
spacecraft.
| A．it | B．one | C．that | D．what |