The police still haven’t found her, but they’re doing all they _____.
| A．may | B．can |
| C．must | D．will |
Make ______ a habit to put whole-grain biscuits, nuts or raisins in your backpack.
| A．/ | B．this | C．that | D．it |
Pompeii _______ by so many tourists that some of the relics are not well protected.
| A．has been visited | B．is visited | C．is visiting | D．was visited |
Michael really has a gift ______ playing the piano so his teacher decided to make a pianist of him.
| A．on | B．about | C．into | D．for |
— Have you seen _______ lady’s handbag on the counter? I left it here a moment ago.
— What color is _______ bag？We found one really.
| A．the; a | B．a; the | C．a; a | D．the; the |
— Can we meet tomorrow afternoon?
—Not in the afternoon, I'm afraid．I．
| A．will be working | B．am going to be | C．am about to work | D．will work |