C)It could drive in various areas.-|||-B)It could work without human involvement. D)It could take four people-|||-6.A)It can only drive in flat areas. C)It has no gas pedals and steering wheels.-|||-B)It cannot go over 130 kilometers per hour. D)It has no safety devices.-|||-7.A)Produce 25 cars in the next five years. C)Expand testing to more areas-|||-B)Develop areas with more hills. D)Explore areas with more rain.

C)It could drive in various areas.-|||-B)It could work without human involvement

If she could ( ) the conditions there, we could take her. If she could ( ) the c

[单选题]----Could you take ____ for these ____? They are very beautiful .A． any ph otos, tomatoesB． some photos, tomatoesC． some photos, tomatosD． any photos, tomatoes

[单选题]C．ould you find someone _________?(A) for me to play tennis with(B) play tennis with(C) for me to play tennis(D) playing tennis with

[单选题]You and I could hardly work together, ?A． could you B. couldn’t I C. couldn’t we D. could we

[单选题]You and I could hardly work together, ( ) ?A． could you B. couldn’t I C. couldn’t we D. could we

[单选题]She could fixmachine without [referring] to the instructions.A.observingB.l

Smith ______ as manager, but nobody could take his place.Mr.Smith______asmanager

Sir， could you please take your seat？ The plane       ．（ ）A. takes offB. has tak

[单选题]50．—could you take care of our dog while we are away?—__________A． With pleasureB． It's my pleasureC． Never mindD． That's all right