We can ________ many books in the library.
A. to read
B. reads
C. read
D. reading
My favourite class ______ English.
A. is
B. being
C. like
D. go
I ________ crazy about ________ basketball.
A. are; playing
B. am; play
C. am; playing
D. is; playing
15P原子的基态为()
A. 1S0
B. 2S1/2
C. 3P0
D. 4S3/2