–This is the first time I _____ pictures with you .
–Now it is time that you ______ a picture for me .
A.took , tookB.have taken , tookC.took , have taken D.has taken , take
B
 本題考查時態(tài)。這里It is time  that ...句型中that 后的從句應該用虛擬語氣,常用過去時態(tài)表示虛擬。而It is the first ( second ... ) time that ...句型要和上一個句型區(qū)別開來。該句型中的 that 從句謂語動詞不用虛擬語氣,而用完成時態(tài)。至于用什么完成時態(tài),由主句的謂語動詞的時態(tài)決定。如果是一般現(xiàn)在時,后面從句用現(xiàn)在完成時態(tài);如果是一般過去時,后面從句則用過去完成時態(tài)。該結構中 that 可以省去;it有時用 this 替換.常譯為"是第一(二)...次..."。 
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