Everyone has periods in their lives ______ everything seems very hard.
You’d better _______his name, address and telephone number before you forget them.
I’d like to know _________ Chinese.
—Do you mean that we have lost our way? —_________!
— Jenny, it seemed that your partner didn’t dance well. — Oh, _____Three boys to choose from and I picked the stupid one.
Jeff is hard-working. He seldom, _____, comes to work late and leaves off early.