The energy is ________ makes the cells ableto do their work

We had____8-day holiday,but some of us felt unhappy because of ____heavy traffic on the highways.

no life has been found outside the earth, but while some scientists areactively searching for living things in outer space, others firmly believethere ____ .

The cakes in the restaurant ____________， so they __________ well.

It is reported that it is 100 years ______ Qinghua University was founded