The women kept her eyes _____ on her baby for quite some time.
Come and see me whenever __________.
The school has __________ a special class to help poor readers.
Eating too much fat can __________ heart disease and cause high blood pressure.
The gentleman the little children followed suddenly stopped and looked as if __________ whether he was going in the right direction.
The doctor __________ me to have my eyes tested, but I didn't take it for __________.