【时态 选择】It was reported that the number of cars owned

【时态 选择】It was reported that the number of cars owned
It was reported that the number of cars owned by Shenyangers has already been over 670and___by about 275 cars a day.
A has increased  B is increasing
I____ping-pong quite well,but I haven't had time to play since the new year
A.have played  B.play 
My wife_____me to do this or that at home all the time.
A ordering B orders
I was out of town at the time,so I don't know exactly how it____
A happened  B has happened
This is one of the most special questions that___at such meeting.
A.has ever been raised  B have ever been raised
This is the first time we___a film in the cinema toghether as a family.
A.see B have seen
So far htis year we___a fall in house prices by between 5 and 10 percent.
A saw B have seen （fall不是不能跟现在完成时连用吗?）
My cousin went to Canada two years ago.He___there for a few months and then went to China.
A.worked  B.has been working.
拜托把为什么选这个 那个为什么不对讲清楚.

It was reported that the number of cars owned by Shenyangers has already been over 670and___by about 275 cars a day.
A has increased B is increasing
b.后面是a day ,每天都增加的意思,所以用现在进行时就好
I____ping-pong quite well,but I haven't had time to play since the new year
A.have played B.play
b.我乒乓球打得好,陈述性的,所以用一般时就好.
My wife_____me to do this or that at home all the time.
A ordering B orders
b.我老婆在家整天叫我干这干那,陈述性的,所以一般时就好,老婆是第三人称所以是orders.
I was out of town at the time,so I don't know exactly how it____
A happened B has happened
a.那件事发生的时候我不在所以我不知道它是怎么发生的,不知道那件事那刻是怎么发生的,一般过去时就好.
This is one of the most special questions that___at such meeting.
A.has ever been raised B have ever been raised
b.“one of the most special questions”,复数形式,不要被前面的one误导,所以用have
This is the first time we___a film in the cinema toghether as a family.
A.see B have seen
b.this is the first time ..have done 固定用法
So far htis year we___a fall in house prices by between 5 and 10 percent.
A saw B have seen （fall不是不能跟现在完成时连用吗?）
b.今年至今我们见证了房价下跌了5%~10%.a fall in house prices是房价下跌(fall).
My cousin went to Canada two years ago.He___there for a few months and then went to China.
A.worked B.has been working.
a.他在那儿工作了几个月后去了中国.b的话是一直在工作的意思.