– Tom spent his childhood in England . Is it true? --- No. It was in China ______he spent his childhood.
It will not be long _____man can harness the solar energy and make it serve mankind.
Doing your homework is a sure way to improve your test scores, and this is especially true______ it comes to the classroom tests.
Substances will expand or contract ______ heated or cooled, but this is not the case with water.
You can arrive in Beijing earlier for the meeting __ you don’t mind taking the night train.
The old woman has loved Tom _____ he were her son.