James is _______ boy.A. a 18-month-oldB. an 18-months-oldC. an 18-month-old
—I think the poor health will get________of your study.
—Don’t________too late,or you will feel tired in class tomorrow. —I won’t,Mom.
—You look worried,Kate. —I have to________a math test this afternoon.I’m kind of nervous.
We were________tired to walk on.So we asked the coach to stop walking to have a rest.
She’s not strong enough________walking up mountains.