Our English ______ far better in a month if we try harder.
A：becomes
B：will become
C：has become
D：became
甲、乙两个学生放学回家，甲要比乙多走 15 的路，而乙走的时间比甲少 111 ，求甲、乙两人的速度比是（ ）
(____) Is it on your desk?
(____) Sure.
(____) Excuse me! Can I use your eraser?
(____) Where is my eraser?
(____) Look! It's under the chair.
(____) No, it isn't.
