Asparagus Stir Fry

2 tbs. cornstarch
1 c. beef broth
3 tbs. soy sauce
1/2 tsp. sugar
2 tbs. oil
2 whole garlic cloves
2 lbs. fresh asparagus, trimmed and cut
in 2 1/2 in. pieces.
2 med onions, halved and thinly sliced
1 med. sweet red pepper, juillened
1 large carrot, sliced
2 1/2 cooked roast beef strips
Stir in soy sauce and sugar.
Continue as usual.