In America, if _______ friend has invited you to drop i
n at any time, it is _______ best to call
before visiting to make sure it is convenient for him.
| A．a; a | B．the; a | C．a; 不填 | D．the; 不填 |
—What do you think of your part-time job in the summer vacation?
—Well, the work is, but I feel happy when I can make money using my hands.
| A．tired | B．tire |
| C．tiring | D．to be tiring |
If men can’t live in harmonynature, the balance will be destroyed.
| A．to | B．with | C．of | D．for |
We should dowe can to help those who lost their homes in the heaviest rain.
| A．whatever | B．however | C．which | D．that |
Why not ride bicycles tothe countryside with us this weekend? I’m sure you will enjoy yourself and come across the unexpected things.
| A．search | B．discover | C．explore | D．desert |
On the green grass, which live in perfect harmony with people there.
| A．where live many animals | B．do many animals live |
| C．live many animals | D．living many animals |