I think camping out is _______ great fun, for we can get close to _______nature and learn something useful at the same time.
| A．不填; 不填 | B．不填; the |
| C．a; 不填 | D．a; the |
Do speak loudly while _______ yourself understood well.
| A．listen to | B．listening to to make | C．listened to to make | D．listening to be made |
_______ several times, he still turned a deaf ear to the typhoon forecast.
| A．Being warned | B．Having warned | C．Having been warned | D．I’ve warned him |
My uncle _________ in Taiwan for 20 years. Now he has settled down in mainland.
| A．was living | B．had lived | C．has lived | D．lived |
He claimed _______ in the supermarket when he was doing shopping yesterday.
| A． to have been badly treated | B．treating badly |
| C．to be treated badly | D．being badly treated |
I _______ up here night after night for weeks now. You see, I _______ to give you a surprise.
| A．have come; hoped | B．have been coming; has hoped |
| C．have come; was hoping | D．have been coming; was hoping |