Bothofmybrothersarenowmarried，soIhavetwo_____.
A、sister-ins-law
B、sisters-in-law
C、sisters-in-law
D、sister-in-law
A、20%～30%
B、40%～50%
C、55%～60%
D、65%～70%
A、6个月
B、8个月
C、10个月
D、12个月
Two-thirdsofhisproperty_____lostinthefire.
A、was
B、were
C、are
D、havebeen
_____youunderstandthisrule，you‘llhavenodifficultyindealingwithsuchproblems.
A、While
B、Though
C、Unless
D、Once