Scientists generally agree that Earth's climate will warm up over the next 50 to 100 years __________ it has warmed in the 20,000 years since Ice Age.
He gave a ________smile.
They gave a banqnet( 宴会)_____the guests from Britain.
. I’m really tired_____Tom . He had me _____for two hours in the rain .
If you cheat in the exam, you could hardly _____it.
. He sat at the desk ,________a novel.