1、 用括号里的动词的适当形式填空 2、 填空完后把句子改成否定句和一般疑问句(1) Peter______________(swim) in the river last Sunday.(2) He never ______________ (swim) on Sunday.(3) He ____________________ (swim) when Tom saw him that day.2、（1） I_________________ (have) a long holiday next month.（2） I_____________________ (go) to the US.例句：(1) Peter____swam__________(swim) in the river last Sunday.否定句：Peter didn’t swim in the liver last Sunday .一般疑问句:Did Peter swim in the liver last Sunday

1) swam
"last sunday",所以用过去式。
(2) swim
"never" "on sunday", 所以可以看的出他通常是不会的，所以用一般现在时。
(3) was swimming
"when tom saw him..."所以代表，当tom看到他的时候，他正在做一件事。
注意swim加ing的时候要双写m.
2. (1) will have

1.swam，因为带有last sunday，具体说的是上个星期天，所以应该选用一般过去时
Peter didn’t swim in the liver last Sunday
Did Peter swim in the liver last Sunday ?

swims，表示从来不
He always swim on sunday。
Does he never swim on sunday？
was swimming，tom看到他的时候他正在游泳，与saw时态配合选用过去进行时
He wasn't swimming when Tom saw him that day.
Was he swimming when Tom saw him that day？
2.will have，next month 表示将来
I will not have a long holiday next month.
Will I have a long holiday next month？
am going，表示即将要去没过
I am not going to US.
Am I going to US?

1.
(1) swam
"last sunday",所以用过去式.
(2) swim
"never" "on sunday", 所以可以看的出他通常是不会的,所以用一般现在时.
(3) was swimming
"when tom saw him..."所以代表,当tom看到他的时候,他正在做一件事.
注意swim加ing的时候要双写m.
2. (1) will have
“next month" 将来式.
(2) 这句我觉得went,或者am going都是有可能的
如果写went, 代表”我去过US"
如果写am going, 代表“我现在正在去US的途中,或者我将要去”