如图，题中已画出光通过透镜前后的方向，请在下列方框中分别填上适当类型的透镜．
为了使砖墙在转角处各皮间竖缝相互错开，必须在外角处砌（）。
I was going to spend my holiday in Italy next year but the price of everything has rather （） the ide perhaps I shall to Spain instead.
A.bogged me down
B.turned me out
C.set me back
D.put me off
