I’d appreciate it if you could tell me how ________ the machine.

单选题

I’d appreciate it if you could tell me how ________ the machine.

答案解析

单选题

We are interested in your new product and would appreciate it very much if you send us a sample.(2.0)

答案解析

单选题

I’d appreciate ______ if you would like to teach me how to use the computer.

答案解析

单选题

If the pump is unserviceable replace it.

答案解析

单选题

We won‘t go to the zoo if it ______tomorrow.

答案解析