Explanation: Took off is aphrase which means leaving of the ground.
Correct Sentence: In an act of defiance, Syrian air force jets took off from the airbase hit by American missiles the next day to bomb Islamic State locations in the Homs countryside, while Russian President Vladimir Putin has sent a warship to the Mediterranean.
Explanation: Has will be used according to subject.
Correct Sentence: The icy welcome offered to U.S. State Secretary Rex Tillerson in Moscow on Wednesday underscores the Russian fury, which has thrown the possibility of any future Russian-U.S. cooperation in finding a political solution to the Syrian war into jeopardy.
Explanation: ‘Is’ will be used in place of ‘are’ because subject is in singular form.
Correct Sentence: The conflicting statements being issued by the officials show that he lacks a coherent strategy on Syria or the administration is ill-prepared to deal with the political consequences of the strike.
Explanation: First form of verb will be used according to sentence.
Correct Sentence: The failure of G7 at its Lucca summit early this week to reach a consensus on more sanctions against Russia over its Syria support shows even America’s European allies are divided.
Explanation: According to subject is will be used in place of are.
Correct Sentence: Lastly, the forum would require a tribunal to assess the case presented by each island nation and to decide whether help from the international community is required.
Explanation: According to the tense of sentence could will be used in place of can.
Correct Sentence: The tribunal could then invoke appropriate measures such as multilateral negotiations or directions that enable migration, compensation and other remedies that could save the people of the sinking small island nations.
Explanation: Displace is incorrect displaced will be used as noun.
Correct Sentence: The forum must enable negotiations regarding the legal status of migrants and develop adaptive strategies in the destination country to guarantee and to protect dignity and cultural identity of the displaced in the destination country.
Explanation: Accornding sentence meaning preposition ‘of’ is wrong, ‘to’ will be used in place of ‘of’.
Correct Sentence: By extending such existing obligations through political pressure and diplomacy, the forum could ensure compensation to the island nations in the form of contributions from party countries by managing a fund created in this regard.
Explanation: According to subject was will be used.
Correct Sentence: The growth rate of the advanced economies remained low and the recovery from the crisis of 2008 was tepid which an adverse impact on exports.
Explanation: Sentence is in present tense so first form of verb will be used.
Correct Sentence: What is needed now is for public sector undertakings to come out with an explicit statement indicating the extent of investment they intend to make during the current fiscal.