__________ is really hard __ them to climb such a high mountain.
| A．This; to | B．It; to |
| C．This; for | D．It; for |
---- Dad , why should I stop ____ computer games ?
----- For your health , my boy , I’m afraid you _______ .
| A．to play; must | B．playing; have to |
| C．to play ; can | D．playing ; may |
The woman feels that she could let her daughter _____ her own decision this time .
| A．makes | B．to make | C．is making | D．make |
Where is my pen ? Millie _____ it here but I can’t find it .
| A．puts | B．put | C．is putting | D．was putting |
There ____ a talk show on CCTV-4 at eight this evening .
| A．is going to be | B．will have | C．is going to have | D．is having |
The zoo keeper is worried because the number of visitors ______ smaller and smaller .
| A．is becoming | B．become | C．became | D．to become |