()
A.7
B.14
C.22
D.29
参考答案:D
解析:
14×2+12=40,6×2+8=20,则问号处数字为12×2+5=29,选D。
It’s a rule in my class that our classroom ______ before 6:00 p.m. every day.
A.be able to clean
B.should be cleaning
C.must clean
D.must be cleaned