当你看到笼子中的狮子很孤独，你可以说：
A.The elephant is dreaming.
B.The monkeys are hugging.
C.The lion is lonely.
( ) It 
us thirty minutes to climb to the top.
| A．make | B．carried | C．took | D．made |
( ) 
was in front of you last Monday?
| A．Who | B．What | C．When | D．Where |
( ) Chinese people invented paper for 
.
| A．we | B．us | C．our | D．I |
( ) Nine children
their grandparents last week.
| A．visits | B．visit | C．visiting | D．visited |
( ) The man sits
under the tree.
| A．at | B．up | C．down | D．in |