______ useful robot! It can help with the housework like a human servant.

Last month, the Japanese government expressed their thanks for the aid they ___ from China.

n ministers of the two countries holdregular meetings,they can exchange viewson international issues of both concern.

What class ____ your brother in—He ____ in Class Two.

No sooner _____ a paper on his latest research than he was asked to write another for the program.