47. Although he ‘s wealthy，he spends_____________ onclothes.

Gina’s ping-pong balls are , on the bed, on the sofa and under the chair.

It is obvious to the students ________ they should get well prepared for their future.[ ]

I felt it hard to keep up with my classmates. But whenever I want to__ __ ，my teacher always encourages me to work harder.

We may find that learning a foreign language doesn’t have to be ______ learning our native language.______, our native language is very difficult to learn.