She sings very well. She can _______ the school music festival.
| A．is in | B．is on | C．be in | D．be on |
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 soas that girl.
| A．hard | B．harder | C．hardest | D．hardly |