he girl sitting next to me on the plane was very nervous, for she before.
| A．hasn’t flown | B．hadn’t flown |
| C．didn’t fly | D．wasn’t flying |
Some of the young men learn English________ to the radio．
| A．from listen | B．from listening | C．by listen | D．by listening |
—Mary was heard _______ just now. What happened?
—John was telling a joke.
| A．cry | B．to cry | C．laugh | D．to laugh |
Daniel was a bad mood and didn’t talk to .
| A．on; something | B．with; anybody | C．in; anybody | D．in; somebody |
Would you mindthe problem to us?
| A．explain | B．explaining | C．to explaining | D．to explain |
All the students in Class 5 will climb the mountain if it _______ rain tomorrow.
| A．won’t | B．don’t | C．didn’t | D．doesn’t |