Generally speaking, ________according to the directions, the medicine has no side effect.
#81943
A
when taken
B
when taking
C
when to take
D
when to be taken
推荐题目
The sign says that children are admitted only if ________ by an adult.
#80121
A
to be accompanied 
B
accompanying
C
accompanied 
D
to accompany
 ____ St Paul’s Cathedral built after the terrible fire of London in 1666. It looked splendid when first _____! 
#81323
A
There followed; built
B
There following ; built
C
There followed; building
D
There following ; building