The other day, my brother drove his car down the street at _____ I thought was a dangerous speed.

I usually stay ______ bed on Sunday morning.

Though there are some differences in American and Chinese education，both systems are__________excellent graduates.

I’m surprised that you should have been fooled by such a(an)＿＿＿＿＿trick.

I ____ a good idea of collecting money _______up a Hope Primary School.