They can do the work better with _____ time and _____ people.

—Which month has ______ days in a year?  —February.

－Look at our model of space station. Do you like it?－Yes, it is even          than ours.

—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.

Dear students, please read every sentence carefully. ___ you are, ____ mistakes you’ll make.