The police always take advantage of dogs’ ____ sense of smell to search for something.
| A．sensitive | B．sharp | C．practical | D．tremendous |
____ private cars are bringing us convenience, they may also cause more traffic accidents and pollution.
| A．While | B．As | C．If | D．Since |
—I'm afraid I can’t do well in the job interview. Could you give me some advice?
—______ Have confidence in yourself.
| A．Never mind. | B．Take care! |
| C．Take it easy. | D．It's too bad. |
He ____enough time, otherwise he could have done it better.
| A．hadn’t given | B．didn’t give |
| C．hasn’t been given | D．wasn’t given |
---Mary, let’s go to the bookshop this weekend. Will you be ?
---Sorry, but I’m going to visit my uncle in the countryside.
| A．eager | B．Suitable |
| C．convenient | D．available |
---Volunteering is getting popular in China.
---Indeed. More people are now aware that helping others benefits themselves a lot.
| A．casually | B．accurately |
| C．tightly | D．Increasingly |