Linda，Dad has finished his work and we ____to the gym to pick you up．
Thank you，Mum．（ ）
A．driveB．drove
C．have drivenD．are driving
The bed piano allows a music lover to play ____ piano while he is lying in bed．（ ）
A．aB．anC．/D．the
You came back from Beijing yesterday． Could you tell me______？
I went there by train．（ ）
A．how you went there
B．who you went with
C．what you think of the trip
D．if you enjoy the trip
Riding Mobike is one of the best ways to exercise．
______． I often do it．（ ）
A．I disagreeB．That's true
C．I don't think soD．I'm afraid not
Laiwu has developed a lot in the last few years．
Yes． And the high﹣speed rail ____ in 2020．（ ）
A．completesB．is completed
C．will be completedD．will complete
Could you help me clean the floor， Bob？
Wait a moment，I _____ for some information about the World Cup．（ ）
A．searchB．have searched
C．am searchingD．was searching