---How much difficulty did you have________________ this problem? ---_____________. It's quite easy.
It took him morning to check outinformation.
I think ________ vocabulary lists ________ us a lot.
---What happened ________Tom? ---He ________because of his drink-driving.
Hurry up! There is someone _________for you in the office.
The road was covered with sand ______ the heavy sandstorm.