B1.There are many things we can do,(),we can go to clean the park on weekend.A.such as B.like C.for example D.or2.We shall ()the truth early or late.A.find B.find out C.recognize D.look out 3.A panda ()baboo.A.lives with B.lives in C.lives on D.lives for4.I think there is no ()why he doesn't come.A.cause B.excuse C.reason D.idea1.C2. A3. C