问题

Tom, with his classmates, ______ the windows at the moment.
A:is cleaning
B:are cleaning
C:cleaning
D:clean;
B:are cleaning
C:cleaning
D:clean;
正确答案是:
同类题型
We are _____ to see so many interesting books in the library. Now we have _____ to read.
The Nile River ____ flood large areas but now thewater ____ produce electricity
hstoodbesidethewindow,hisattention____thecaroutside
Excuse me, is it from our school to the subway station— Let me see. It’s about 5 minutes’ walk.