_____do you learn English— By ______vocabulary lists.

Who is the young fellow sitting at the counter?I often see him here.—He’s one of the________customers of our company.[ ]

ive professional hands ______ them next month, these students are sure to complete the experiment on time.

Shall we go to the amusement park right away or next weekend — Any .time will do.

下列各句中没有语病，意义明确的一句是（ ）