你可能感兴趣的试题
When taken drugs When drugs are taken When one takes drugs When taking drugs
covering covered cover to cover
slithering radiating interfering murmuring
slithering radiating interfering murmuring
regulate the fluid flow in either direction restrict movement of hydraulic fluid in one direction, but allow free movement inthe other direction allow free movement of hydraulic fluid in both directions allow a restricted fluid flow in one direction only
could do should do must have done could have done
Whenever two vessels approach from opposite directions If the bearing of an approaching vessel does not appreciably change Whenever a vessel crosses ahead of the intended track of another vessel If one vessel approaches another so as to be overtaking"
could do could have done must have done should do
When taken drugs When drugs taken When one takes drugs When taking drugs
Directions: Beneath each of the following sentences there are four choices marked A, B, C, and D. Choose the one answer that best completes the sentencE. 21. ________caused the accident is still a mystery. A. How What That Where
could could have done must have done should do
湘公网安备 43130202000226号