作业帮Only if__according to the directions can the medicine be quite effective.为什么填taken,而不是having been taken
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Only if__according to the directions can the medicine be quite effective.为什么填taken,而不是having been taken
Only if__according to the directions can the medicine be quite effective.
为什么填taken,而不是having been taken
Only if__according to the directions can the medicine be quite effective.为什么填taken,而不是having been taken
1 因为强调的是“一贯的,规律的”,所以我们用taken.==only if it IS TAKEN-------一般不用完成式结构------has been taken / having been taken .
2 having been taken往往与有for-- -- ,since-- - - - 这样的时间状语的短语结构一起使用.
Only if__according to the directions can the medicine be quite effective.为什么填taken,而不是having been taken
only codes don't
only love can't forget!
Don't spoil the only
Only don't let me down
Don't talk only about suitable
There is only you can't see
The only can't give up .
We can't only silence between是什么意思.
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