(一)去掉to
make、have作使役动词时,后面不加to,直接接动词原形,表示让某人干某事.
我们的老师让我们放学后做家庭作业.
(二)1.had been here,ago
2.travels much faster
3.they had built
4.why haven't,had then
(一)去掉to
make、have作使役动词时,后面不加to,直接接动词原形,表示让某人干某事.
我们的老师让我们放学后做家庭作业.
(二)1.had been here,ago
2.travels much faster
3.they had built
4.why haven't,had then