I don’t know _________.
A．what to do it B．how to do C．what to do D．to do what
The MP3 ______ too much. He ______ 200 yuan _______ it .
A．spent, spent, on B．cost, spent, on
C．paid, paid, for D．paid, cost, in
The art club is for members only. You can’t go in _______ you are a member.
A．unless B．because C．if D．though
She likes doing her homework _______ the radio _______.
A．to, with B．on, with C．with, on D．with, open
In winter, we must pay attention to _________.
A．keep warm B．keep warmly C．keeping warm D．keeping warmly
He thinks watching movies ________.
A．frustrated B．frustrating C．frustrate D．to frustrate
