— I'm afraid that we can't the math problem the teacher helps us.
— That's true.It's too difficult.
A．work on；ifB．work on；unless
C．work out；ifD．work out；unless
一I often see the sign in schools.What does it mean？
一Students bring mobile phones to school.（ ）
A．needn'tB．can'tC．couldn'tD．wouldn't
The landing of China's rover （登陆车） Zhurong on Mars shows China has made great in space exploration.（ ）
A．progressB．projectC．productD．protection
Dad never says that he is good at cooking，but in fact he is.He always cooks delicious meals for us，that is ______.
A．every dog has its day
B．put all your eggs in one basket
C．a miss is as good as a mile
D．actions speak louder than words
—Sam，can you tell me ______？
—She is a nurse.
A．what Alice's job isB．what is Alice's job
C．what Alice's job wasD．what was Alice's job
—It's really kind of you to help me with Maths，Jack.
— ______.
A．It doesn't matterB．All right
C．You're welcomeD．Never mind