I am ready（）tow line.

The present voyage of my ship began at the port of Shanghai after loading 8 000 tons of Cargo on board and ended after discharging the Cargo at the port of Hong Kong，which was（）.

There is a drifting mine（）in position 21 degrees 31 minutes North 124 degrees 20 minutes East.

The generators on your rig have shut down，leaving you without navigation lights. Which emergency signal would you transmit over the VHF radio to alert vessels in the area of your predicament? （）

My ship（）that port next month.

The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.

One hour before arrival at Elbe 1 light vessel，masters are advised to contact the pilot boat by（）.

A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.

There is a VHF set（）the front of the wheelhouse.

If it（）fine tomorrow，we shall start unloading.