The program, __________ at improving the students' ability of listening and speaking, will surely be a success.
It is always those ________ forgive first ________ achieve more happiness.
—Why are you staring at me? —You look stupid! The way you wear is ______ annoys me most.
________ I can’t understand is ________ he wants to change his mind.
All through history, big changes have taken place in ________ English language, especially when Henry IV became ________ King of England.
—Did you forget about my birthday? —____________ I’ve booked a table at Michael’s restaurant for this evening.