6． Don-t worry! I-m sure you’ll _________ your classmates if you work hard at your lessons．

Why not join us in the game?（）

Will you join us for lunch?（）

—Go and say sorry to your Mom, Dave. —I’d like to, but I’m afraid she won’t be happy with my ______ .

When joining a vessel，do not forget personal documents and your spectacles，and（）if necessary.

One and a half hour（）since we arrive. No one has come to meet us.

3． —Come and join us，Jimmy !—I-m sorry，but I-m really busy now．lf I _______ time，l would certainly go．

Text 2 In studying both the recurrence of special habits or ideas in several districts, and their prevalence within each district, there come before us ever-reiterated proofs of regular causation producing the phenomena of human life, and of laws of maintenance and diffusion conditions of society, at definite stages of culture. But, while giving full importance to the evidence bearing on these standard conditions of society, let us be careful to avoid a pitfall which may entrap the unwary student. Of course, the opinions and habits belonging in common to masses of mankind are to a great extent the results of sound judgment and practical wisdom. But to a great extent it is not so.

They _____ on the program for almost one week before I joined them, and now we _____ on it as no good results have come out so far.

(单项选择)Why not join us in baseball? ____________

—I’m sorry, but there’s no smoking on this flight.　 —Oh, I ______ that. Sorry, I won’t again.

Sorry to bother you but…的意思是很抱歉打扰你，但是…