小明今年x岁,小力今年x﹣8岁,再过a年后,他们相差( )岁.
The teacher encourages the children to feel _________ about asking questions when they don't understand.( )
A.nervousB.confidentC.excitedD.practical
I will see what I can do,but I can't ______ you anything.( )
A.planB.prepareC.promiseD.protect
Anita spoke _________ quietly that I could hardly hear her.( )
A.tooB.suchC.soD.very
When you are home,give me a call to let me know you __________ safely.( )
A.arrivedB.have arrived
C.will arriveD.are arriving
My cousin works for an airline.He flies planes.He is __________.( )
A.an inventorB.a scientist
C.an explorerD.a pilot