氮甲(N-甲酰溶肉瘤素)的理化性质为
____beforewedepartthedayaftertomorrow,weshouldhaveawonderfuldinnerparty.
Iam____gratefulforthemanykindnessesyouhaveshownmyson.
Ifhe____ontouristsforhisbusiness,hewouldhavetoclosehisshop.
Mycoat__________therebehindthedoor.Can’tyouseeit?
Whentheideaofwinninginsportsiscarriedtoexcess,____competitioncanturnintodisorderandviolence.
Nora:Howlonghasthisbookshopbeeninbusiness?
Michel:______1982.
Allwewanttodo______tofindenoughwater_______thehorses.
______theyaretwinsisters,theydon’tlooklikeeachother.
Thereis______littleinformationabouthimthatwehave______muchdifficultyfindinghim.
Nowhereinnatureisaluminumfoundfree,owingtoitsalways____withotherelements,mostcommonlywithoxygen.