It is difficult to hire young people to work as a bricklayer or carpenter nowadays, because they usually think the job, which requires hard work and is dirty most of the time, is ______.
Don’t be afraid of asking for help _______ it is needed.
——Mr Smith looks rather a kind man. ——But in fact he is cold and hard on us. You ____ believe it!
I spent five hours repairing the car. The work was ____ simple.
The car ____ at the present speed until it reaches the foot of the mountain at about ten o'clock tonight.
——Did your friend accept your invitation? ——No, he ____ refused.