—Robert speaking. Could you get me through to Mr. Smith in Room 501?
—I’m sorry, he isn’t here. He ________ this morning.
A.checked in B.dropped in C.checked out D.dropped out
Some institutions have established reading clubs to promote reading, but the effort, though ________, is far from enough.
A.appreciated B.appreciating C.having appreciated D.to appreciate
China’s maternal and infant goods ecommerce platforms ________ heavily and speeding up their steps to expand offline channels.
A.invest B.are investing C.are invested D.have invested
Conservationists __________on setting aside natural reserves for the wild species they are trying to protect during the past decade.
A.focused B.focus C.have focused D.had focused
A growing number of family doctors are working fewer hours to avoid huge pension taxes, _________ already overworked surgeries are making fewer appointments for patients.
A.to mean B.meant C.meaning D.having meant
Travel agencies claim they work in close______ with the local authorities to bring tourism back to its former glory.
A.reference B.company
C.sympathy D.cooperation
