1.Thiswatchis_______byhand,notbymachine,soitisveryexpensive.
2.Thesetwohorseslooksomuchalikethatwecannot_______onefromtheother.
3.Thepresidentofthatcompanywasverycalmduringthepolitical_______.
4._______isusuallythechiefenemyofthecameralens.
5.The_______lefttheshipaftersixtyhoursofhardstruggle.
6.OnourwaytoBeijing,wevisitedXi’an,acityoftwomillion_______,andstayedtherefortwodays.
7.Oneofthemainreasonsforairpollutionisthatmanycars_______smokeintotheatmosphere.
8.Don’tforgetto_______toletusknowyouarrivedsafely.
9.Shegavehima_______thatshecouldnotcometohisparty.
10.Whenthetemperatureisbelowzero,waterwill_______.