One hundred potential vaccines are___ being tested on human volunteers to cure an incurable disease in the future.

admin2011-04-03 60

问题 One hundred potential vaccines are___ being tested on human volunteers to cure an incurable disease in the future.

选项 A、commonly
B、currently
C、accidentally
D、suspiciously

答案B

解析因为句中使用的是现在进行时are being tested，所以应当选择相应的副词currently。

转载请注明原文地址:https://kaotiyun.com/show/NSid777K

托业阅读

相关试题推荐

随机试题

最新回复(0)