It is said that they $ 200 000 for the house up to now.A. will offerB. are offeringC. of

问题补充：

It is said that they $ 200, 000 for the house up to now.

A. will offer

B. are offering

C. offer

D. have offered

答案：

A. will offer

B. are offering

C. offer

(答案→)D. have offered

解析：本题考查时态。up to now = up till now， 表示“到现在为止”， 常与现在完成时连用。