Allofusknow,color-blindpeopleoftenfinditdifficultto__betweenblueandgreen.
A、separateB
暂无解析
Wecan____thetwoislandswithabridge.
Nowhereinnatureisaluminumfoundfree,owingtoitsalways____withotherelements,mostcommonlywithoxygen.
HowI_____Icouldliveonthemoon.
Tom,withhisparents______toAmerica.They_____backintwoweeks.
---Wouldyouliketogooutforawalkwithus?
---_____,butImustfinishmyhomeworkfirst.
