We arrived _______the farm ______ a Tuesday morning .
A．to, on B．in, at C．on, in D．at, on
I'm going for a field trip but I haven't decided_________.
A．what to do B．to do what
C．where to go D．to go where
－Must I go and get some water now? －No, you __________.
A．needn't B．may not C．mustn't D．don't
The film _________ for twenty minutes when I got to the cinema.
A．has begun B．had begun
C．has been on D．had been on
Look! The boy isn’t working so as that girl.
A．hard B．harder C．hardest D．hardly
The Yellow River is the second _____________river in our country.
A．long B．longer C．longest D．the longest
