Fill in the blanks with an appropriate verb form.

Engineers …………………………. (designed / have designed / had designed) a new spider-shaped vessel that ……………………. (promise / promises / is promising) low fuel consumption at high speeds. The 100-foot-long water spider ……………………… (designed / is designed / has designed) for everything from military uses to biological studies, ocean exploration and sea rescue.

Proteus, the so-called Wave Adaptive Modular Vessel ………………………… (costs / costing / cost) about 1.5 million dollars. It has a load bearing capacity of 12 tonnes. The light-weight, low cost and modular craft ……………………….. (is / has / was) well suited to scientific and environmental purposes. The craft ………………………. (can / may / might) travel 5,000 miles – farther than across the Atlantic – on one 2,000 gallon-load of diesel fuel.

Answers

Engineers have designed a new spider-shaped vessel that promises low fuel consumption at high speeds. The 100-foot-long water spider is designed for everything from military uses to biological studies, ocean exploration and sea rescue.

Proteus, the so-called Wave Adaptive Modular Vessel costs about 1.5 million dollars. It has a load bearing capacity of 12 tonnes. The light-weight, low cost and modular craft is well suited to scientific and environmental purposes. The craft can travel 5,000 miles – farther than across the Atlantic – on one 2,000 gallon-load of diesel fuel.