Rose often goes to____on Sundays.But now she is______.A.swimming,swimming B.swim,swim C.swim,swimming D.swimming ,swim原因，为什么
问题描述：
Rose often goes to____on Sundays.But now she is______.
A.swimming,swimming B.swim,swim C.swim,swimming D.swimming ,swim
原因，为什么
答
选择C
第一处为go引起的不定式结构，所有应该用动词的原形；第二处，表示现在正在进行的动作，所有应该使用动词的现在分词形式！
答
选C
to引导的动词不定式后用动词原形
IS是BE动词后用名词
答
C
整句的意思是:Rose经常在周日游泳,但现在她正在游泳(意思是:虽然现在不是周日)
to 后面要跟动词原形,所以是go to swim
另外一种常见的用法是go swimmng,类似的还有go shopping, go fishing等等
now she is swimming现在他正在游泳
是现在进行时,所以要加ing
答
C
go to do sth...去做某事
be doing 正在做某事