You can’t imagine the difficulty he ________ onto the cliff and saving the boy in trouble.
It wasn’t until nearly a month later ________ I received the manager’s reply.
Someone is ringing the doorbell.Go and see ________
My sister has some trouble ______spelling some of the words in American English, while I have some difficulty ________ my pronunciation.
Only by doing what your soul is eager to do_______ your life something full of beautiful memories.
The tourists gathered at________ was once a square, _______ is used as a theme park.