问题

The new machine, if used _____, can hold up at least 10 years [ ]

A: straight
B: correct
C: properly
D: fluently

正确答案是：

同类题型

If I watch the animals ______, I’ll get ______for my class report.

Mrs Green was so pleased ____ her daughter won the first place in the singing competition

What about _____ some dumplings for the Spring Festival

下列词语字形全都正确的一项是 ( )

The film festival isasan event of international importance．