With a lot of difficult problems________，the newlyelected president is having a hard time.[ ]

24．This is an exciting area of study，_______new applications are being discoveredalmost daily．

Do you know the American girl __________ sunglasses

Have you worked here since you graduated?—No, I ____________at a factory in Beijing for six years

Unrest and violence in North Africa and the Middle East ____ at their fastest rate since 2008. [ ]