They climbed to the top of the tower, _____ they could see _____ was happening in the distance

8It is obvious that she ________, for she looks much slimmer than she did last year

I called you at 7:00 yesterday evening,but no one answered.Sorry,I_______ with my family at that time in the cinema.

The topic, we devoted a full discussion, is to be presented to our teacher at class.

I feel it hard to keep up with myclassmates in study and sometimes I lose heart. But whenever I want to ________, my teacher always encourages me to work harder.