The old man _____ for 10 years.
_____, 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, understandingB.many, understandingC.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