.Something _______ wrong with the machine, and it _______ not work.
EBOLA(埃博拉) is said_______ another big health challenge to our humans over the past several months .
Nowadays ______idea is always flashing across his mind that he should fix______timefor another trip with his family.
______our students need in the process of their preparations for NMET is time, healthand perseverance,the teachers stress.
---Don’t tell me you’ll have a dinner date again.---______.I didn’t mean to.
--- QQ, as a means of communication, is quite popular among us and costs less than the traditional forms.---______________.