There are many kinds _____, but I don’t know which to buy.
| A．to be chosen | B．to choose from |
| C．to choose | D．for choosing |
If the service is awful, a customer has the right to _____ to the manager.
| A．react | B．apply | C．complain | D．suggest |
It will take a lot of time and_____ to finish the task on time.
| A．power | B．pressure | C．struggle | D．energy |
We’ll have our picnic in the place _____ most of us like best.
| A．where | B．which | C．who | D．as |
My house _____ when you visited Beijing last time, so I didn’t invite you to my home.
| A．was being decorated | B．is being decorated |
| C．has been decorated | D．was decorated |
She had to drop out of school _____ her family couldn’t afford the cost of her education.
| A．although | B．unless | C．because | D．so |