None of us was able to explain how the equipment _____________(起作用).

The whole country was in trouble, and the capital was troublesome in __________(特别).

Large ___________(大量的) of drugs were discovered hidden in the truck by the police, and the driver was arrested.

 Practice is ___________(必不可少) to students who want to master a foreign language.

In my opinion, clothes made by hand are ________(优于) to those made by machines.

To what d_______ is he interested in computer games?

The instrument can be easily broken, so you should handle it with much c___________.

The new invention will have a wide range of a__________ in industry.

Yesterday I bought an e_________ dictionary in a shop, but it doesn’t work now.

You’d better take this kind of tablet; it can r________ your pain immediately.