IsLindagoodatsinging?Yes,sheis.Weoftenhearher()inherroom.
A. tosing
B. sang
C. sing
D. sings
Isthatseattaken?()
A. Pleasedon'tworry.
B. Idon'tthinkso.
C. Whynot?
D. It'sverynice.
电子天平称量时数码显示不稳定,产生的原因主要是()。
A. 振动和风的影响
B. 被称物吸湿或有挥发性,使质量不稳定
C. 称盘与天平外壳之间有杂物
Istherearoomavailablefortonight?Yes,Sir.MayIhelpyou?()
A. Thankyou.
B. I'mhopingtobookasingleroom.
C. Iwanttogoforawalk.
D. No,that'sfine.