—Could you please come to the museum with me this afternoon?—Sorry,I ________.I have to take a piano lesson at 2 pm.
Frank often wears a mask _____ he can keep fit in the foggy and hazy (霾) weather.
They said they would have ____________ holiday.
We all want to try something new, but finding the _________ to start is always the hardest part.
---What do you think of the bridge?---I have never seen _________ before.
The world paused to remember a cultural giant _______ April17 after Nobel Prize-winning writer Gabriel Garcia Marquez died _______ the age of87.