A.carrying the bags of sand |
B.keeping drinking-water |
C.carrying ropes of the basket |
D.changing weight |
A.in London | B.on the sea |
C.on a lake | D.in a foreign country |
A.The three men started their journey before the sun rose. |
B.The balloon began to go up when they threw bags of sand out of the basket. |
C.When they pulled the box into the basket, the balloon began to climb up. |
D.The three men had to land because they felt cold. |