這是考查非限制性定語從句嗎？

請看下面一題，是考查非限制性定語從句嗎？

If the man is only interested in your looks, _____ just shows how shallow he is.

A. as                            B. which

C. what                        D. that

【分析】容易誤選A或B，誤這是非限制性定語從句。正確答案為D，注意逗號前是一個條件狀語從句，逗號后是該狀語從句的主句，that 在此代表前文所述的情況，用作主句的主語。類似地，下面幾道題也選 that，而不選 which：

(1) If you promise to go with us, _____ will be OK.

A. as                             B. which

C. and it                        D. that

(2) If you want a double room, _____ will cost another ￡15.

A. as                            B. which

C. what                        D. that

(3) Whether you go or not, _______ is quite all right with me.

A. that                           B. which

C. and it                        D. so

(4) When I say two hours, _____ includes time for eating.

A. as                            B. which

C. what                        D. that