Mymotherdidn’t____usleavingKunmingatonce,sowehadtostaytherefor____twodays. [ ]

Why do you look so worried- My MacBook Pro broke down and mypaper______unfinished since

The research on the new flu virus vaccine ischallenging and demanding Who do you think can do the job —_______ my students have a try

Alice always asks me advice whatever she does.

Thank you for your present. It’s so beautiful.______.