The ______ problem of bringing a space-ship back from the moon has been solved.A.technique

－ How much of a problem meeting the budget？ － _______.

Mikal Ron believes that the exchange of economy will bring to the world______.A．business p

All of the following are the changes of modern universities EXCEPT______.A．bringing in a n

Failure in a required subject may ______ the denial of a diploma.A．result fromB．bring down

Open educational resources are expected to______.A．bring down the cost of textbooksB．repla

Paragraph 3______A.Dealing with the Problem of Va