史密斯一家习惯于早起。
The Smiths _________________________________________________________.你知道他算出这道数学题是否有困难？
Do you know ________________________________________the maths problem?据说这种病毒不会再对人造成不良影响。
It is said that the virus may________________________________________ people again.种子通常是随风传播的。
Seeds__________________________________________________________________.他希望自己当一名工程师的愿望将会实现。
He hopes his wish _______________________________________________________.年轻人应该常向别人学习，而不是卖弄。
Young people should often .