Wecan’timaginewhatgreatdifficultytheyhave

問題詳情：

We can’t imagine what great difficulty they have ________ the problems in the plan.

A．to settle                            B．settling

C．settled                              D．to be settled

【回答】

解析：此句中 they have 為定語從句。what great difficulty 為先行詞，還原即為： have what great difficulty (in) settling ...，故選B項。

*：B

知識點：非謂語動詞

題型：選擇題