I remember __ to the seaside by my uncle when I was a child. We forgot __ an overcoat and I felt very cold.
Many people think it very difficult _______ English.
The teacher asked the students __________ her _______ the word again.
Remember ______ the book here tomorrow.
---Let's have a rest, shall we?--- Not now. I don't want to stop _______ the letter yet.
---This physics problem is too difficult. Can you show me __________, Wang Lin?--- Sure.