_isknowntotheworld,MarkTwainwasagreatAmericanwriter.
A、AsDon’t ask him how old he is. He’s really ____about it.
StevelookedattheenvelopeandrecognizedJenny’shandwriting_______.
Johncomplainedtothebooksellerthattherewereseveralpages______inthedictionary.
Thistimetomorrow,I________onthebeach,enjoyingthesunshine!
Theukuleleisa________instrument,whichresemblesaguitar.
