Many Americans eat ________ as they actually need every day.
| A．twice as much protein (蛋白质) | B．twice protein as much |
| C．protein as much twice | D．protein as twice much |
They have been waiting for many hours to see the singer, but the airplane must have been _____.
| A．behind the times | B．behind schedule |
| C．ahead of time | D．in no time |
Today, housework has been made much easier by electrical _____.
| A．facilities | B．appliances | C．instruments | D．equipment |
Pack the cake in a strong box, or it might get _____ in the post.
| A．splashed | B．spilt | C．crushed | D．crashed |
. Professor Smith and Professor Brown will _____ in giving the class lectures.
| A．exchange | B．alter | C．shift | D．alternate |
In a typhoon, winds _____ a speed greater than 120 kilometers per hour.
| A．assume | B．accomplish | C．attain | D．assemble |