Kevin will give less homework to his students if he ______ a teacher.
#41619
A
becomes
B
become
C
became
D
becoming
推荐题目
They have been skating __________.
#40389
A
for three hours
B
since three hours ago
C
three hours ago
D
since three hours
My hometown ______ a lot  in the past ten years.
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A
change
B
changed
C
has changed
D
is changing
Ssh, please be quiet. The baby _______ .
#40226
A
sleep
B
sleeps
C
is sleepping
D
is sleeping