[单项选择]The family （）at the lunch table when someone came to tell them what had happened at
A. were sitting; Mr. Brown
B. were sitting; Mr. Brown’s
C. was sitting; Mr. Brown
D. was sitting; Mr. Brown’s

[单项选择]When will they eat lunch
A. While on the River Thames
B. After visiting Buckingham Palace
C. Before seeing the London Eye
D. While inside Buckingham Palace

[填空题]People do not know for sure when numbers came into use.
It is not______for sure when numbers came into use.

[简答题]When it came to his amazing achievements, the famous scientist put an emphasis on the importance of creating rather than waiting for opportunities.

[填空题]Only when I came across some trouble and had no one to rely on ______(我才意识到自立的重要性).

[填空题]When 1 came across her in tile street yesterday, she pretended (not know) ______ me.

[填空题]When I came across her in the street yesterday, she pretended (not know) ______ me.

[单项选择]When dawn came, they realized that the boat was blocked in ice. The captain (81) asleep but the rest of the crew hurriedly woke him. He took a small axe (斧) and (82) . great care, (83) make a hole in the deck, he began to knock the ice away. From time to time a wave burst over the boat and swept over him but he kept (84) for ten minutes while the others looked on anxiously (85) this time he was (86) cold that he could no longer trust what he was doing.
Each member of the crew took it (87) turn to cut the ice away as long as he could (88) it. First, they had to knock off enough ice to get on their (89) . Standing on that rolling deck meant (90) , because a man who had fallen into the sea could not have been rescued.
Then the captain discovered that ice was forming inside the cabin (船舱). He called (91) one of the crew and together they managed to get the sto
A. legs
B. ankles
C. knees
D. arms