He _____a letter to Dick last week. [ ]
A. writes
B. is writing
C. wrote
D. writed
答案:C
有一个直角三角形,三边长分别为:6、8、10.在其外部再画一个直角三角形,使它们共同拼出一个等腰三角形,请你画出图形并求所构成等腰三角形的面积.
Do you remember the place _____ we visited last year?
A.that
B.where
C.when
D.in which