Her mother will come back _____ (after / in) five days.
句意：他的妈妈五天后回来。after five days 五天以后，句子通常用过去时态；in five days 五天以后，句子常用一般将来时态；该句是一般将来时，故选 in。
2018年12月，张阿姨把4000元的存入银行，定期三年，年利率是2.75%到期后，应得利息______元.
Her mother will come back _____ (after / in) five days.
Autumn comes _____ (before / after) summer.
What do you often do _____ (at / in) weekends?
We will go to the cinema _____ (in / on) Sunday evening.
Do you know _____ (why / what) you are studying for?
I don’t know _____ (how / why) so many people are looking at him.
They don’t know _____ (if / whether) to go or wait.
I really don’t know _____ (how much / how soon) the bridge will be finished.
She said _____ (that / if) it wouldn’t matter much.
