用所给动词的适当形式填空。
1.LiMing____(join)theLeagueattheageoffourteen.
2.There____(be)noschoolsorhos-pitalsinmyhometown30yearsago.
3.-Haveyouseenthefilm?
-Notyet.I____(see)itifI'mfree.
4.It'sfun____(learn)Englishwell.
5.____(drop)litterhareandthereisnotallowed.
6.I'vealreadyfinished____(read)thisbook.
7.Shereturnedtheerasertohimafter____(complete)herstudies.
8.Childrenenjoy____(play)withcolorullanterns.