Jim is good ____soccer,he think it’s good ____health. A.at;to B,for;at C.at ;for D.to.at
—We really shouldn’t use plastic bags any more when shopping. —_____ It’s important to protect our environment.
_____he is very tired , _____he still goes on working.
When we went into the park, we saw someone _____ Chinese Kungfu.
Imy homework, I guess I can't join you.
What can we students do _____ the environment?