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.
Although ______ for many years, the two old sisters recognized each other at once.
-Surely you can turn to David for help. -_______ He is the last one you can rely on.
The violent disturbances in Bangkok had progressed to a point ________ the police had to drive away the protestants with tear gas.
.My parents have always made me _____ about myself, even when I was twelve.
Chinese Vice-Premier called on Thursday for______ all-out effort to ensure ______ food and drug safety.