【题目】I'd appreciate_____if you could come and help me once more and I always appreciate_____me with my English in the past.
A.this; you to help
B.that；you helping
C.it；you to help
D.it；your helping

【答案】D
【解析】第一个空考查I'd appreciateit 后面跟从句的结构；第二个空考查appreciate，后面跟v.ing形式。