prepare是加doing还是to do
prepare是加doing还是to do
prepare的用法是prepare for doing sth还是prepare to do sth有何区别
be prepare do 还是be prepare doing
ask后面是加to do还是doing,还是do?
fear 后面是加doing?do?还是to do?
look forward to是加doing还是加do?
hope加doing还是加to do
except加doing 还是加to do
find后面是加do还是加doing还是加to do?
carefully 后面是加doing 还是 to do
cause后可以加什么 是to do还是doing
bear后面是加to do还是doing?