_______ you are busy now, let’s go next time, OK?
| A．For | B．When |
| C．Because of | D．Since |
I first met Lisa three years ago. She ________ at a radio shop at the time.
| A．worked | B．was working | C．has worked | D．has been working |
. As a volunteer, he often goes to the hospital to ________ the sick.
| A．cheer up | B．fix up | C．set up | D．put up |
_______ of the students will take part in the sports meeting.
| A．Three five | B．Three fives | C．Three fifth | D．Three fifths |
Trees and flowers ________every year to make our country more beautiful.
| A．is planted | B．was planted | C．are planted | D．were planted |
—Mr. Smith, would you please speak a little more ________?
—Sorry! I thought you could follow me.
| A．quietly | B．slowly | C．quickly | D．politely |