The engineer will return from Hong Kong _____ a few days.
A.in B.for C.after
_____, I practice speaking English in the park. The air there is very fresh.
A.Sometime B.Some times C.At times
The winter holiday will begin soon. John _____ to stay with us.
A.will be coming B.comes C.is coming
Maria has _____ trouble _____ math, so she often asks her math teacher for help.
A.much, understanding
B.many, understanding
C.not, to understand
Teachers should _____ their students to practice _____ English as much as possible.
A.encourage, speaking B.let, speak C.make, speak
—What a nice classroom!
—It _____ every day.
A.is cleaning B.has cleaned C. is cleaned
